diff --git a/lisp/my/my-tool-bar.el b/lisp/my/my-tool-bar.el
index fb05c09a..29159a08 100644
--- a/lisp/my/my-tool-bar.el
+++ b/lisp/my/my-tool-bar.el
@@ -201,7 +201,7 @@ You can hide these buttons by customizing `tab-bar-format' and removing
                      (propertize "`previous-buffer'"
                                  'face 'font-lock-constant-face)))
       (next
-       menu-item ,my-tool-bar-button-buffer-next my-tool-bar-function-buffer-next
+       menu-item ,my-tool-bar-button-next-buffer my-tool-bar-function-next-buffer
        :help (concat "Next buffer "
                      (propertize "`next-buffer'"
                                  'face 'font-lock-constant-face)))