diff --git a/wiki/source/error404.md b/wiki/source/error404.md
index 20d0e65..f215e62 100644
--- a/wiki/source/error404.md
+++ b/wiki/source/error404.md
@@ -1,7 +1,7 @@
 ---
 title: custom 404
 author: deepend
-category: tutorial
+category: tutorials
 ---
 
 All users can now setup their own custom 404 error page.  Just add a file named `404.html` in `~/public_html`