diff --git a/library/Icingadb/Model/ActionUrl.php b/library/Icingadb/Model/ActionUrl.php
index 0245fe85..61186233 100644
--- a/library/Icingadb/Model/ActionUrl.php
+++ b/library/Icingadb/Model/ActionUrl.php
@@ -4,6 +4,8 @@
 
 namespace Icinga\Module\Icingadb\Model;
 
+use Icinga\Module\Icingadb\Model\Behavior\ActionAndNoteUrl;
+use ipl\Orm\Behaviors;
 use ipl\Orm\Model;
 use ipl\Orm\Relations;
 
@@ -35,6 +37,11 @@ class ActionUrl extends Model
         ];
     }
 
+    public function createBehaviors(Behaviors $behaviors)
+    {
+        $behaviors->add(new ActionAndNoteUrl(['action_url']));
+    }
+
     public function createRelations(Relations $relations)
     {
         $relations->belongsTo('environment', Environment::class);
diff --git a/library/Icingadb/Model/NotesUrl.php b/library/Icingadb/Model/NotesUrl.php
index 0b299df3..6cc3c2b1 100644
--- a/library/Icingadb/Model/NotesUrl.php
+++ b/library/Icingadb/Model/NotesUrl.php
@@ -4,6 +4,8 @@
 
 namespace Icinga\Module\Icingadb\Model;
 
+use Icinga\Module\Icingadb\Model\Behavior\ActionAndNoteUrl;
+use ipl\Orm\Behaviors;
 use ipl\Orm\Model;
 use ipl\Orm\Relations;
 
@@ -35,6 +37,11 @@ class NotesUrl extends Model
         ];
     }
 
+    public function createBehaviors(Behaviors $behaviors)
+    {
+        $behaviors->add(new ActionAndNoteUrl(['notes_url']));
+    }
+
     public function createRelations(Relations $relations)
     {
         $relations->belongsTo('environment', Environment::class);