Index: wp-includes/comment-template.php
===================================================================
--- wp-includes/comment-template.php	(revision 36445)
+++ wp-includes/comment-template.php	(working copy)
@@ -1828,7 +1828,7 @@
 		echo $noreplytext;
 	else {
 		$comment = get_comment($replytoid);
-		$author = ( $linktoparent ) ? '<a href="#comment-' . get_comment_ID() . '">' . get_comment_author( $comment ) . '</a>' : get_comment_author( $comment );
+		$author = ( $linktoparent ) ? '<a href="#comment-' . $replytoid . '">' . get_comment_author( $comment ) . '</a>' : get_comment_author( $comment );
 		printf( $replytext, $author );
 	}
 }