Index: wp-includes/comment.php
===================================================================
--- wp-includes/comment.php	(revision 10603)
+++ wp-includes/comment.php	(working copy)
@@ -1415,7 +1415,7 @@
 	// Variables
 	$ltrs = '\w';
 	$gunk = '/#~:.?+=&%@!\-';
-	$punc = '.:?\-';
+	$punc = '.:?\-',*()_;
 	$any = $ltrs . $gunk . $punc;
 
 	// Step 1
