diff --git a/modules/monitoring/library/Monitoring/MonitoringWizard.php b/modules/monitoring/library/Monitoring/MonitoringWizard.php
index 82ee90e62..e746db033 100644
--- a/modules/monitoring/library/Monitoring/MonitoringWizard.php
+++ b/modules/monitoring/library/Monitoring/MonitoringWizard.php
@@ -8,7 +8,7 @@ use Icinga\Web\Wizard;
 use Icinga\Web\Request;
 use Icinga\Module\Setup\Setup;
 use Icinga\Module\Setup\SetupWizard;
-use Icinga\Module\Setup\Requirements;
+use Icinga\Module\Setup\RequirementSet;
 use Icinga\Module\Setup\Forms\SummaryPage;
 use Icinga\Module\Monitoring\Forms\Setup\WelcomePage;
 use Icinga\Module\Monitoring\Forms\Setup\BackendPage;
@@ -136,9 +136,9 @@ class MonitoringWizard extends Wizard implements SetupWizard
      */
     public function getRequirements()
     {
-        $requirements = new Requirements();
+        $set = new RequirementSet();
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'Sockets',
             'description'   => mt(
@@ -148,9 +148,9 @@ class MonitoringWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $idoRequirements = new Requirements(Requirements::MODE_OR);
-        $mysqlRequirements = new Requirements();
-        $mysqlRequirements->add(new PhpModuleRequirement(array(
+        $idoSet = new RequirementSet(RequirementSet::MODE_OR);
+        $mysqlSet = new RequirementSet();
+        $mysqlSet->add(new PhpModuleRequirement(array(
             'condition'     => 'mysql',
             'alias'         => 'PDO-MySQL',
             'description'   => mt(
@@ -158,7 +158,7 @@ class MonitoringWizard extends Wizard implements SetupWizard
                 'To access the IDO stored in a MySQL database the PDO-MySQL module for PHP is required.'
             )
         )));
-        $mysqlRequirements->add(new ClassRequirement(array(
+        $mysqlSet->add(new ClassRequirement(array(
             'condition'     => 'Zend_Db_Adapter_Pdo_Mysql',
             'alias'         => mt('monitoring', 'Zend database adapter for MySQL'),
             'description'   => mt(
@@ -166,9 +166,9 @@ class MonitoringWizard extends Wizard implements SetupWizard
                 'The Zend database adapter for MySQL is required to access a MySQL database.'
             )
         )));
-        $idoRequirements->merge($mysqlRequirements);
-        $pgsqlRequirements = new Requirements();
-        $pgsqlRequirements->add(new PhpModuleRequirement(array(
+        $idoSet->merge($mysqlSet);
+        $pgsqlSet = new RequirementSet();
+        $pgsqlSet->add(new PhpModuleRequirement(array(
             'condition'     => 'pgsql',
             'alias'         => 'PDO-PostgreSQL',
             'description'   => mt(
@@ -176,7 +176,7 @@ class MonitoringWizard extends Wizard implements SetupWizard
                 'To access the IDO stored in a PostgreSQL database the PDO-PostgreSQL module for PHP is required.'
             )
         )));
-        $pgsqlRequirements->add(new ClassRequirement(array(
+        $pgsqlSet->add(new ClassRequirement(array(
             'condition'     => 'Zend_Db_Adapter_Pdo_Pgsql',
             'alias'         => mt('monitoring', 'Zend database adapter for PostgreSQL'),
             'description'   => mt(
@@ -184,9 +184,9 @@ class MonitoringWizard extends Wizard implements SetupWizard
                 'The Zend database adapter for PostgreSQL is required to access a PostgreSQL database.'
             )
         )));
-        $idoRequirements->merge($pgsqlRequirements);
-        $requirements->merge($idoRequirements);
+        $idoSet->merge($pgsqlSet);
+        $set->merge($idoSet);
 
-        return $requirements;
+        return $set;
     }
 }
diff --git a/modules/setup/application/forms/RequirementsPage.php b/modules/setup/application/forms/RequirementsPage.php
index f4b8ee648..086e6e7fc 100644
--- a/modules/setup/application/forms/RequirementsPage.php
+++ b/modules/setup/application/forms/RequirementsPage.php
@@ -4,7 +4,7 @@
 namespace Icinga\Module\Setup\Forms;
 
 use Icinga\Web\Form;
-use Icinga\Module\Setup\Requirements;
+use Icinga\Module\Setup\RequirementSet;
 
 /**
  * Wizard page to list setup requirements
@@ -14,9 +14,9 @@ class RequirementsPage extends Form
     /**
      * The requirements to list
      *
-     * @var Requirements
+     * @var RequirementSet
      */
-    protected $requirements;
+    protected $set;
 
     /**
      * Initialize this page
@@ -30,24 +30,24 @@ class RequirementsPage extends Form
     /**
      * Set the requirements to list
      *
-     * @param   Requirements    $requirements
+     * @param   RequirementSet    $set
      *
      * @return  self
      */
-    public function setRequirements(Requirements $requirements)
+    public function setRequirements(RequirementSet $set)
     {
-        $this->requirements = $requirements;
+        $this->set = $set;
         return $this;
     }
 
     /**
      * Return the requirements to list
      *
-     * @return  Requirements
+     * @return  RequirementSet
      */
     public function getRequirements()
     {
-        return $this->requirements;
+        return $this->set;
     }
 
     /**
@@ -63,6 +63,6 @@ class RequirementsPage extends Form
             return false;
         }
 
-        return $this->requirements->fulfilled();
+        return $this->set->fulfilled();
     }
 }
diff --git a/modules/setup/library/Setup/Requirements.php b/modules/setup/library/Setup/RequirementSet.php
similarity index 91%
rename from modules/setup/library/Setup/Requirements.php
rename to modules/setup/library/Setup/RequirementSet.php
index 69892f236..6ffce61fb 100644
--- a/modules/setup/library/Setup/Requirements.php
+++ b/modules/setup/library/Setup/RequirementSet.php
@@ -9,7 +9,7 @@ use RecursiveIterator;
 /**
  * Container to store and handle requirements
  */
-class Requirements implements RecursiveIterator
+class RequirementSet implements RecursiveIterator
 {
     /**
      * Mode AND (all requirements must met)
@@ -59,7 +59,7 @@ class Requirements implements RecursiveIterator
      *
      * @param   int     $mode
      *
-     * @return  Requirements
+     * @return  RequirementSet
      *
      * @throws  LogicException      In case the given mode is invalid
      */
@@ -88,7 +88,7 @@ class Requirements implements RecursiveIterator
      *
      * @param   Requirement     $requirement    The requirement to add
      *
-     * @return  Requirements
+     * @return  RequirementSet
      */
     public function add(Requirement $requirement)
     {
@@ -144,14 +144,14 @@ class Requirements implements RecursiveIterator
     /**
      * Register the given requirements
      *
-     * @param   Requirements    $requirements   The requirements to register
+     * @param   RequirementSet  $set    The requirements to register
      *
-     * @return  Requirements
+     * @return  RequirementSet
      */
-    public function merge(Requirements $requirements)
+    public function merge(RequirementSet $set)
     {
-        if ($this->getMode() === static::MODE_OR && $requirements->getMode() === static::MODE_OR) {
-            foreach ($requirements->getAll() as $requirement) {
+        if ($this->getMode() === static::MODE_OR && $set->getMode() === static::MODE_OR) {
+            foreach ($set->getAll() as $requirement) {
                 if ($requirement instanceof static) {
                     $this->merge($requirement);
                 } else {
@@ -159,11 +159,11 @@ class Requirements implements RecursiveIterator
                 }
             }
         } else {
-            if ($requirements->getMode() === static::MODE_OR) {
+            if ($set->getMode() === static::MODE_OR) {
                 $this->containsMandatoryRequirements = true;
             }
 
-            $this->requirements[] = $requirements;
+            $this->requirements[] = $set;
         }
 
         return $this;
@@ -250,7 +250,7 @@ class Requirements implements RecursiveIterator
     /**
      * Return the current element in the iteration
      *
-     * @return  Requirement|Requirements
+     * @return  Requirement|RequirementSet
      */
     public function current()
     {
diff --git a/modules/setup/library/Setup/SetupWizard.php b/modules/setup/library/Setup/SetupWizard.php
index 9e7b45174..1ce948dc1 100644
--- a/modules/setup/library/Setup/SetupWizard.php
+++ b/modules/setup/library/Setup/SetupWizard.php
@@ -18,7 +18,7 @@ interface SetupWizard
     /**
      * Return the requirements of this wizard
      *
-     * @return  Requirements
+     * @return  RequirementSet
      */
     public function getRequirements();
 }
diff --git a/modules/setup/library/Setup/WebWizard.php b/modules/setup/library/Setup/WebWizard.php
index 59404efd6..d3bb71bfa 100644
--- a/modules/setup/library/Setup/WebWizard.php
+++ b/modules/setup/library/Setup/WebWizard.php
@@ -357,9 +357,9 @@ class WebWizard extends Wizard implements SetupWizard
      */
     public function getRequirements()
     {
-        $requirements = new Requirements();
+        $set = new RequirementSet();
 
-        $requirements->add(new PhpVersionRequirement(array(
+        $set->add(new PhpVersionRequirement(array(
             'condition'     => array('>=', '5.3.2'),
             'description'   => mt(
                 'setup',
@@ -368,7 +368,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpConfigRequirement(array(
+        $set->add(new PhpConfigRequirement(array(
             'condition'     => array('date.timezone', true),
             'title'         => mt('setup', 'Default Timezone'),
             'description'   => sprintf(
@@ -377,7 +377,7 @@ class WebWizard extends Wizard implements SetupWizard
             ),
         )));
 
-        $requirements->add(new OSRequirement(array(
+        $set->add(new OSRequirement(array(
             'optional'      => true,
             'condition'     => 'linux',
             'description'   => mt(
@@ -387,7 +387,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'condition'     => 'OpenSSL',
             'description'   => mt(
                 'setup',
@@ -395,7 +395,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'JSON',
             'description'   => mt(
@@ -404,7 +404,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'LDAP',
             'description'   => mt(
@@ -413,7 +413,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'INTL',
             'description'   => mt(
@@ -424,7 +424,7 @@ class WebWizard extends Wizard implements SetupWizard
         )));
 
         // TODO(6172): Remove this requirement once we do not ship dompdf with Icinga Web 2 anymore
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'DOM',
             'description'   => mt(
@@ -433,7 +433,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'GD',
             'description'   => mt(
@@ -442,7 +442,7 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $requirements->add(new PhpModuleRequirement(array(
+        $set->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'Imagick',
             'description'   => mt(
@@ -451,8 +451,8 @@ class WebWizard extends Wizard implements SetupWizard
             )
         )));
 
-        $mysqlRequirements = new Requirements();
-        $mysqlRequirements->add(new PhpModuleRequirement(array(
+        $mysqlSet = new RequirementSet();
+        $mysqlSet->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'mysql',
             'alias'         => 'PDO-MySQL',
@@ -461,7 +461,7 @@ class WebWizard extends Wizard implements SetupWizard
                 'To store users or preferences in a MySQL database the PDO-MySQL module for PHP is required.'
             )
         )));
-        $mysqlRequirements->add(new ClassRequirement(array(
+        $mysqlSet->add(new ClassRequirement(array(
             'optional'      => true,
             'condition'     => 'Zend_Db_Adapter_Pdo_Mysql',
             'alias'         => mt('setup', 'Zend database adapter for MySQL'),
@@ -470,10 +470,10 @@ class WebWizard extends Wizard implements SetupWizard
                 'The Zend database adapter for MySQL is required to access a MySQL database.'
             )
         )));
-        $requirements->merge($mysqlRequirements);
+        $set->merge($mysqlSet);
 
-        $pgsqlRequirements = new Requirements();
-        $pgsqlRequirements->add(new PhpModuleRequirement(array(
+        $pgsqlSet = new RequirementSet();
+        $pgsqlSet->add(new PhpModuleRequirement(array(
             'optional'      => true,
             'condition'     => 'pgsql',
             'alias'         => 'PDO-PostgreSQL',
@@ -482,7 +482,7 @@ class WebWizard extends Wizard implements SetupWizard
                 'To store users or preferences in a PostgreSQL database the PDO-PostgreSQL module for PHP is required.'
             )
         )));
-        $pgsqlRequirements->add(new ClassRequirement(array(
+        $pgsqlSet->add(new ClassRequirement(array(
             'optional'      => true,
             'condition'     => 'Zend_Db_Adapter_Pdo_Pgsql',
             'alias'         => mt('setup', 'Zend database adapter for PostgreSQL'),
@@ -491,9 +491,9 @@ class WebWizard extends Wizard implements SetupWizard
                 'The Zend database adapter for PostgreSQL is required to access a PostgreSQL database.'
             )
         )));
-        $requirements->merge($pgsqlRequirements);
+        $set->merge($pgsqlSet);
 
-        $requirements->add(new ConfigDirectoryRequirement(array(
+        $set->add(new ConfigDirectoryRequirement(array(
             'condition'     => Icinga::app()->getConfigDir(),
             'description'   => mt(
                 'setup',
@@ -503,9 +503,9 @@ class WebWizard extends Wizard implements SetupWizard
         )));
 
         foreach ($this->getWizards() as $wizard) {
-            $requirements->merge($wizard->getRequirements());
+            $set->merge($wizard->getRequirements());
         }
 
-        return $requirements;
+        return $set;
     }
 }