diff --git a/contrib/lang/markdown/packages.el b/contrib/lang/markdown/packages.el
index f87bc460a..1a5ec5d32 100644
--- a/contrib/lang/markdown/packages.el
+++ b/contrib/lang/markdown/packages.el
@@ -20,7 +20,7 @@ which require an initialization must be listed explicitly in the list.")
 
 (defun markdown/init-markdown-mode ()
   (use-package markdown-mode
-    :mode ("\\.md" . markdown-mode)
+    :mode ("\\.m[k]d" . markdown-mode)
     :defer t
     :init (add-hook 'markdown-mode-hook 'smartparens-mode)
     :config