diff --git a/blog/atom.xml b/blog/atom.xml
index 0f9dfcc..a8e8ab7 100644
--- a/blog/atom.xml
+++ b/blog/atom.xml
@@ -1,5 +1,5 @@
 ---
-layout: nil
+layout: null
 ---
 <?xml version="1.0" encoding="utf-8"?>
 <feed xmlns="http://www.w3.org/2005/Atom">