diff --git a/less/button-groups.less b/less/button-groups.less
index 45f2fd0a96..43ada11d9a 100644
--- a/less/button-groups.less
+++ b/less/button-groups.less
@@ -22,11 +22,11 @@
   & .btn-default .caret {
     border-bottom-color: @btn-default-color;
   }
-  & .btn-primary,
-  & .btn-success,
-  & .btn-warning,
-  & .btn-danger,
-  & .btn-info {
+  .btn-primary,
+  .btn-success,
+  .btn-warning,
+  .btn-danger,
+  .btn-info {
    .caret {
       border-bottom-color: #fff;
     }