diff --git a/lib/event.php b/lib/event.php
index f5406d07a6..10ef5ec0a9 100644
--- a/lib/event.php
+++ b/lib/event.php
@@ -108,6 +108,6 @@ class Event {
                 }
             }
         }
-        return ($result === false);
+        return ($result !== false);
     }
 }