diff --git a/js/ngDialog.js b/js/ngDialog.js
index 00076be9..ab189860 100644
--- a/js/ngDialog.js
+++ b/js/ngDialog.js
@@ -155,7 +155,7 @@
                         }
 
                         if (dialogsCount === 1) {
-                            $elements.body.unbind('keydown');
+                            $elements.body.unbind('keydown', privateMethods.onDocumentKeydown);
                         }
 
                         if (!$dialog.hasClass('ngdialog-closing')){