diff --git a/layouts/partials/versioning-warning.html b/layouts/partials/versioning-warning.html
index a57b705b62..ceec003270 100644
--- a/layouts/partials/versioning-warning.html
+++ b/layouts/partials/versioning-warning.html
@@ -1,5 +1,6 @@
 {{- partial "shortcodes/notice.html" (dict
   "page" .page
+  "class" "versioning-warning"
   "content" (T "Versioning-warning" (dict "pageUrl" .pageUrl "pageVersion" .pageVersion "latestUrl" .latestUrl "latestVersion" .latestVersion ))
   "icon" " "
   "style" "warning"