diff --git a/library/Icinga/Authentication/User/DbUserBackend.php b/library/Icinga/Authentication/User/DbUserBackend.php
index 6a2e2f646..8cf4f5f40 100644
--- a/library/Icinga/Authentication/User/DbUserBackend.php
+++ b/library/Icinga/Authentication/User/DbUserBackend.php
@@ -117,7 +117,7 @@ class DbUserBackend extends DbRepository implements UserBackendInterface, Inspec
      *
      * @return void
      */
-    public function insert($table, array $bind)
+    public function insert($table, array $bind, array $types = array())
     {
         $this->requireTable($table);
         $bind['created_at'] = date('Y-m-d H:i:s');
@@ -138,7 +138,7 @@ class DbUserBackend extends DbRepository implements UserBackendInterface, Inspec
      * @param   array   $bind
      * @param   Filter  $filter
      */
-    public function update($table, array $bind, Filter $filter = null)
+    public function update($table, array $bind, Filter $filter = null, array $types = array())
     {
         $this->requireTable($table);
         $bind['last_modified'] = date('Y-m-d H:i:s');
diff --git a/library/Icinga/Authentication/UserGroup/DbUserGroupBackend.php b/library/Icinga/Authentication/UserGroup/DbUserGroupBackend.php
index a76f6c930..04b556ade 100644
--- a/library/Icinga/Authentication/UserGroup/DbUserGroupBackend.php
+++ b/library/Icinga/Authentication/UserGroup/DbUserGroupBackend.php
@@ -133,7 +133,7 @@ class DbUserGroupBackend extends DbRepository implements Inspectable, UserGroupB
      * @param   string  $table
      * @param   array   $bind
      */
-    public function insert($table, array $bind)
+    public function insert($table, array $bind, array $types = array())
     {
         $bind['created_at'] = date('Y-m-d H:i:s');
         parent::insert($table, $bind);
@@ -146,7 +146,7 @@ class DbUserGroupBackend extends DbRepository implements Inspectable, UserGroupB
      * @param   array   $bind
      * @param   Filter  $filter
      */
-    public function update($table, array $bind, Filter $filter = null)
+    public function update($table, array $bind, Filter $filter = null, array $types = array())
     {
         $bind['last_modified'] = date('Y-m-d H:i:s');
         parent::update($table, $bind, $filter);
diff --git a/library/Icinga/Web/Form/Element/Note.php b/library/Icinga/Web/Form/Element/Note.php
index 5344fb31c..9569dee55 100644
--- a/library/Icinga/Web/Form/Element/Note.php
+++ b/library/Icinga/Web/Form/Element/Note.php
@@ -48,7 +48,7 @@ class Note extends FormElement
      *
      * @return  bool            Always true
      */
-    public function isValid($value)
+    public function isValid($value, $context = null)
     {
         return true;
     }