diff -r 2164d18cb10c -r 2a31905a567d includes/render.php
--- a/includes/render.php	Thu Jun 02 05:24:38 2011 -0400
+++ b/includes/render.php	Thu Jun 02 05:28:28 2011 -0400
@@ -241,7 +241,7 @@
 		{
 			// inline only
 			$carpenter->disable_all_rules();
-			foreach ( array('bold', 'italic', 'underline', 'externalwithtext', 'externalnotext', 'image', 'internallink') as $rule )
+			foreach ( array('heading', 'bold', 'italic', 'underline', 'externalwithtext', 'externalnotext', 'image', 'internallink') as $rule )
 			{
 				$carpenter->enable_rule($rule);
 			}