diff --git a/mozilla/browser/themes/winstripe/browser/browser.css b/mozilla/browser/themes/winstripe/browser/browser.css
index c7a79356470..4e8f2beec8b 100644
--- a/mozilla/browser/themes/winstripe/browser/browser.css
+++ b/mozilla/browser/themes/winstripe/browser/browser.css
@@ -1843,7 +1843,7 @@ toolbarbutton.bookmark-item[dragover="true"][open="true"] {
   cursor: help;
   background-color: ThreeDFace;
 %ifdef MOZ_WIDGET_GTK2
-  /*-moz-border-end: 1px solid ThreeDShadow;*/
+  -moz-border-end: 1px solid ThreeDShadow;
 %else
   -moz-appearance: toolbox;
   outline: 1px solid ThreeDShadow;