diff --git a/browser/themes/windows/places/organizer.css b/browser/themes/windows/places/organizer.css
index 4bc08ab0cd..ee86de5868 100644
--- a/browser/themes/windows/places/organizer.css
+++ b/browser/themes/windows/places/organizer.css
@@ -205,7 +205,7 @@
   }
 }
 
-@media (-moz-windows-compositor) {
+@media (-moz-windows-glass) {
   #placesToolbox {
     border-top: none;
   }