diff --git a/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php b/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
index c89974a52..0b1dcfbc3 100644
--- a/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
+++ b/lib/Doctrine/ORM/Persisters/AbstractCollectionPersister.php
@@ -85,7 +85,7 @@ abstract class AbstractCollectionPersister implements CollectionPersister
             return; // ignore inverse side
         }
 
-        return $this->conn->executeUpdate($this->getDeleteSQL($coll), $this->getDeleteSQLParameters($coll));
+        $this->conn->executeUpdate($this->getDeleteSQL($coll), $this->getDeleteSQLParameters($coll));
     }
 
     /**