diff --git a/app/assets/stylesheets/pages/diff.scss b/app/assets/stylesheets/pages/diff.scss
index cfc801859a7e9c53a6611485014efb2e0f051517..da77346d8b258586f11fc79bc8c93e5214b10a8d 100644
--- a/app/assets/stylesheets/pages/diff.scss
+++ b/app/assets/stylesheets/pages/diff.scss
@@ -561,6 +561,7 @@
 
 .diff-files-changed {
   .commit-stat-summary {
+    @include new-style-dropdown;
     z-index: -1;
 
     @media (min-width: $screen-sm-min) {