diff --git a/less/popovers.less b/less/popovers.less
index fb16d79d69..b3399fa34f 100644
--- a/less/popovers.less
+++ b/less/popovers.less
@@ -15,7 +15,7 @@
   background-color: @popover-bg;
   -webkit-bg-clip: padding-box;
      -moz-bg-clip: padding;
-          background-clip: padding-box;
+  background-clip: padding-box;
   border: 1px solid #ccc;
   border: 1px solid rgba(0,0,0,.2);
   border-radius: 6px;