diff --git a/lisp/speedbar.el b/lisp/speedbar.el
index 3cf37afc813..89397f11c91 100644
--- a/lisp/speedbar.el
+++ b/lisp/speedbar.el
@@ -345,7 +345,8 @@
 (defgroup speedbar nil
   "File and tag browser frame."
   :group 'tags
-  :group 'tools)
+  :group 'tools
+  :version "20.3")
 
 (defgroup speedbar-faces nil
   "Faces used in speedbar."