diff --git a/stylesheets/tabs.less b/stylesheets/tabs.less
index d3bd68e..b570dd6 100644
--- a/stylesheets/tabs.less
+++ b/stylesheets/tabs.less
@@ -8,7 +8,7 @@
 
 .tab-bar {
   height: @tab-height + @tab-top-padding + 5px;
-  background: tab-bar-background-color;
+  background: @tab-bar-background-color;
   box-shadow: inset 0 -8px 8px -4px rgba(0,0,0, .15);
   padding: 0 10px;
   box-sizing: border-box;