diff --git a/less/button-groups.less b/less/button-groups.less
index 13c1800dea..84443c88bd 100644
--- a/less/button-groups.less
+++ b/less/button-groups.less
@@ -36,6 +36,7 @@
   margin-left: -5px; // Offset the first child's margin
   &:extend(.clearfix all);
 
+  .btn,
   .btn-group,
   .input-group {
     float: left;