diff --git a/js/ui/messageTray.js b/js/ui/messageTray.js
index a382c799a..22a28b53f 100644
--- a/js/ui/messageTray.js
+++ b/js/ui/messageTray.js
@@ -1808,7 +1808,7 @@ const MessageTray = new Lang.Class({
             // We wait just a little before hiding the message tray in case the user quickly moves the mouse back into it.
             // We wait for a longer period if the notification popped up where the mouse pointer was already positioned.
             // That gives the user more time to mouse away from the notification and mouse back in in order to expand it.
-            let timeout = this._useLongerHideTimeout ? LONGER_HIDE_TIMEOUT * 1000 : HIDE_TIMEOUT * 1000;
+            let timeout = this._useLongerTrayLeftTimeout ? LONGER_HIDE_TIMEOUT * 1000 : HIDE_TIMEOUT * 1000;
             this._trayLeftTimeoutId = Mainloop.timeout_add(timeout, Lang.bind(this, this._onTrayLeftTimeout));
         }
     },