diff --git a/404.html b/404.md
similarity index 82%
rename from 404.html
rename to 404.md
index a2be165..71566e4 100644
--- a/404.html
+++ b/404.md
@@ -1,5 +1,6 @@
---- 
+---
 layout: default
+permalink: /404.html
 ---
 
 <h2>File not found!</h2>