diff --git a/js/ui/popupMenu.js b/js/ui/popupMenu.js
index 8bd836c91..57d9b49e2 100644
--- a/js/ui/popupMenu.js
+++ b/js/ui/popupMenu.js
@@ -317,7 +317,7 @@ const PopupBaseMenuItem = new Lang.Class({
             }
 
             if (direction == Clutter.TextDirection.RTL)
-                childBox.x1 = width - x - availWidth;
+                childBox.x1 = box.x1 + (box.x2 - x - availWidth);
             else
                 childBox.x1 = x;
             childBox.x2 = childBox.x1 + availWidth;