Index: wp-includes/comment.php
===================================================================
--- wp-includes/comment.php	(revision 36588)
+++ wp-includes/comment.php	(working copy)
@@ -1661,7 +1661,7 @@
 	 *
 	 * @since 1.5.0
 	 *
-	 * @param int $comment_content The comment content.
+	 * @param string $comment_content The comment content.
 	 */
 	$commentdata['comment_content'] = apply_filters( 'pre_comment_content', $commentdata['comment_content'] );
 	/**