diff --git a/docs/en/topics/css.md b/docs/en/topics/css.md
index e6043f46d..77db60f0f 100644
--- a/docs/en/topics/css.md
+++ b/docs/en/topics/css.md
@@ -21,7 +21,7 @@ In your controller (e.g. `mysite/code/Page.php`):
 			// either specify the css file manually
 			Requirements::css("mymodule/css/my.css", "screen,projection");
 			// or mention the css filename and SilverStripe will get the file from the current theme and add it to the template
-			Requirements::themedCSS('print', 'print'); 
+			Requirements::themedCSS('print', null,'print'); 
 		}
 	}