diff --git a/less/mixins.less b/less/mixins.less
index 8058acb019..d41262e071 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -43,7 +43,7 @@
 
 // Sizing shortcuts
 // -------------------------
-.size(@height, @width) {
+.size(@width, @height) {
   width: @width;
   height: @height;
 }