diff --git a/lib/Doctrine/ORM/Tools/Export/Driver/XmlExporter.php b/lib/Doctrine/ORM/Tools/Export/Driver/XmlExporter.php
index 9390f144f..5c8d97327 100644
--- a/lib/Doctrine/ORM/Tools/Export/Driver/XmlExporter.php
+++ b/lib/Doctrine/ORM/Tools/Export/Driver/XmlExporter.php
@@ -276,7 +276,7 @@ class XmlExporter extends AbstractExporter
             if ($associationMapping['isCascadeDetach']) {
                 $cascade[] = 'cascade-detach';
             }
-            if(count($cascade)==5){
+            if(count($cascade) === 5){
                 $cascade  = array('cascade-all');
             }
             if ($cascade) {