diff --git a/phalcon/Mvc/Model.zep b/phalcon/Mvc/Model.zep
index 0bc4ef5284d..52078ed9098 100644
--- a/phalcon/Mvc/Model.zep
+++ b/phalcon/Mvc/Model.zep
@@ -5720,7 +5720,7 @@ abstract class Model extends AbstractInjectionAware implements EntityInterface,
      * }
      *```
      */
-    protected function skipAttributes(array! attributes)
+    protected function skipAttributes(array! attributes) -> void
     {
         this->skipAttributesOnCreate(attributes);
         this->skipAttributesOnUpdate(attributes);