diff --git a/lib/patterns.less b/lib/patterns.less
index 5fffc309cb..f281ac7778 100644
--- a/lib/patterns.less
+++ b/lib/patterns.less
@@ -11,7 +11,6 @@ div.topbar {
   background:#222;
   #gradient > .vertical(#333, #222);
   filter: "progid:DXImageTransform.Microsoft.gradient(enabled=false)";
-  -ms-filter: "progid:DXImageTransform.Microsoft.gradient(enabled=false)";
   height: 40px;
   position: fixed;
   top: 0;