diff --git a/less/component-animations.less b/less/component-animations.less
index 2166776d98ba..d614263a76a7 100644
--- a/less/component-animations.less
+++ b/less/component-animations.less
@@ -15,7 +15,6 @@
   position: relative;
   height: 0;
   overflow: hidden;
-  overflow: visible \9;
   .transition(height .35s ease);
   &.in {
     height: auto;