diff --git a/less/progress-bars.less b/less/progress-bars.less
index 5e0c3dda01..300def0ecb 100644
--- a/less/progress-bars.less
+++ b/less/progress-bars.less
@@ -64,6 +64,7 @@
   .box-shadow(inset 0 -1px 0 rgba(0,0,0,.15));
   .box-sizing(border-box);
   .transition(width .6s ease);
+  .backface-visibility(hidden);
 }
 .progress .bar + .bar {
   .box-shadow(~"inset 1px 0 0 rgba(0,0,0,.15), inset 0 -1px 0 rgba(0,0,0,.15)");