diff --git a/internal_packages/thread-list/stylesheets/thread-list.less b/internal_packages/thread-list/stylesheets/thread-list.less
index 0149fb93c..b6143081f 100644
--- a/internal_packages/thread-list/stylesheets/thread-list.less
+++ b/internal_packages/thread-list/stylesheets/thread-list.less
@@ -426,7 +426,7 @@ body.is-blurred {
       display: block;
       background: @component-active-color;
       height:6px;
-      width: 0px; //overridden by style
+      width: 0; //overridden by style
       transition: width 1000ms linear;
     }
     .indeterminate {