diff --git a/library/Director/Objects/IcingaObject.php b/library/Director/Objects/IcingaObject.php
index 1bce9170..83994fd2 100644
--- a/library/Director/Objects/IcingaObject.php
+++ b/library/Director/Objects/IcingaObject.php
@@ -2026,6 +2026,11 @@ abstract class IcingaObject extends DbObject implements IcingaConfigRenderer
         return c1::renderKeyValue('check_command', join('!', $args));
     }
 
+    protected function renderLegacyEvent_command($value)
+    {
+        return c1::renderKeyValue('event_handler', $value);
+    }
+
     /**
      * We do not render zone properties, objects are stored to zone dirs
      *