diff --git a/less/mixins.less b/less/mixins.less
index 5c54c64c75..e0ff3f7057 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -150,10 +150,10 @@
       -ms-transform: rotate(@degrees); // IE9+
           transform: rotate(@degrees);
 }
-.scale(@ratio) {
-  -webkit-transform: scale(@ratio);
-      -ms-transform: scale(@ratio); // IE9+
-          transform: scale(@ratio);
+.scale(@ratio; @ratio-y...) {
+  -webkit-transform: scale(@ratio, @ratio-y);
+      -ms-transform: scale(@ratio, @ratio-y); // IE9+
+          transform: scale(@ratio, @ratio-y);
 }
 .translate(@x; @y) {
   -webkit-transform: translate(@x, @y);