diff --git a/js/gdm/loginDialog.js b/js/gdm/loginDialog.js
index 8cb439581..9a85e8d33 100644
--- a/js/gdm/loginDialog.js
+++ b/js/gdm/loginDialog.js
@@ -626,7 +626,7 @@ const LoginDialog = new Lang.Class({
         this.parent({ shellReactive: true,
                       styleClass: 'login-dialog',
                       parentActor: parentActor,
-                      shouldFade: false });
+                      shouldFadeIn: false });
         this.connect('destroy',
                      Lang.bind(this, this._onDestroy));
         this.connect('opened',