diff --git a/application/controllers/ShowController.php b/application/controllers/ShowController.php
index 14a9d329..3cb667ed 100644
--- a/application/controllers/ShowController.php
+++ b/application/controllers/ShowController.php
@@ -9,8 +9,11 @@ class Director_ShowController extends ActionController
     public function activitylogAction()
     {
         if ($id = $this->params->get('id')) {
-            $this->view->entry = $this->db()->fetchActivityLogEntry($id);
-            $this->view->title = $this->translate('Activity');
+            $this->view->entry = $this->db()->fetchActivityLogEntryById($id);
+        } elseif ($checksum = $this->params->get('checksum')) {
+            $this->view->entry = $this->db()->fetchActivityLogEntry(pack('H*', $checksum));
         }
+
+        $this->view->title = $this->translate('Activity');
     }
 }
diff --git a/library/Director/Db.php b/library/Director/Db.php
index 6875b6f1..24fa9e55 100644
--- a/library/Director/Db.php
+++ b/library/Director/Db.php
@@ -17,13 +17,20 @@ class Db extends DbConnection
         return $this->getDbAdapter();
     }
 
-    public function fetchActivityLogEntry($id)
+    public function fetchActivityLogEntryById($id)
     {
         $sql = 'SELECT * FROM director_activity_log WHERE id = ' . (int) $id;
 
         return $this->db()->fetchRow($sql);
     }
 
+    public function fetchActivityLogEntry($checksum)
+    {   
+        $sql = 'SELECT * FROM director_activity_log WHERE checksum = ?';
+
+        return $this->db()->fetchRow($sql, $checksum);
+    }
+
     public function getLastActivityChecksum()
     {
         $select = "SELECT checksum FROM (SELECT * FROM (SELECT 1 AS pos, LOWER(HEX(checksum)) AS checksum FROM director_activity_log ORDER BY change_time DESC LIMIT 1) a UNION SELECT 2 AS pos, '' AS checksum) u ORDER BY pos LIMIT 1";
diff --git a/library/Director/IcingaConfig/IcingaConfig.php b/library/Director/IcingaConfig/IcingaConfig.php
index 9dc454e5..323aaee7 100644
--- a/library/Director/IcingaConfig/IcingaConfig.php
+++ b/library/Director/IcingaConfig/IcingaConfig.php
@@ -202,7 +202,7 @@ class IcingaConfig
         )->where('checksum = ?', $checksum);
         $result = $this->db->fetchRow($query);
         $this->checksum = $result->checksum;
-        $this->last_activity_checksum = $result->last_activity_checksum;
+        $this->lastActivityChecksum = $result->last_activity_checksum;
         $query = $this->db->select()->from(
             array('cf' => 'director_generated_config_file'),
             array(