diff --git a/scss/_progress.scss b/scss/_progress.scss
index 391081aa08..f9700240ae 100644
--- a/scss/_progress.scss
+++ b/scss/_progress.scss
@@ -1,8 +1,7 @@
 // Disable animation if transitions are disabled
 @if $enable-transitions {
   @keyframes progress-bar-stripes {
-    from { background-position: $progress-height 0; }
-    to { background-position: 0 0; }
+    0% { background-position-x: $progress-height; }
   }
 }