diff --git a/editions/tw5.com/tiddlers/dev/TiddlyWiki Coding Style Guidelines.tid b/editions/tw5.com/tiddlers/dev/TiddlyWiki Coding Style Guidelines.tid
index b884a5ec1..64b04f04f 100644
--- a/editions/tw5.com/tiddlers/dev/TiddlyWiki Coding Style Guidelines.tid	
+++ b/editions/tw5.com/tiddlers/dev/TiddlyWiki Coding Style Guidelines.tid	
@@ -1,5 +1,5 @@
 title: TiddlyWiki Coding Style Guidelines
-tag: dev
+tags: dev
 
 ! Motivation