diff --git a/md/Atari/index.md b/md/Atari/index.md
index c520736..f528eb9 100644
--- a/md/Atari/index.md
+++ b/md/Atari/index.md
@@ -18,7 +18,7 @@
 ```
 For now, all my Atari stuff can be found at [https://ataricode.com](https://ataricode.com).
 
-<pre class="codeblock-atari">
+<pre class="pre-atari">
 10 ;
 20 ;ADDNRS.SRC
 30 ;