diff --git a/wp-includes/comment-functions.php b/wp-includes/comment-functions.php
index 70a6eca535..6b7613f594 100644
--- a/wp-includes/comment-functions.php
+++ b/wp-includes/comment-functions.php
@@ -281,7 +281,7 @@ function get_comment_time( $d = '' ) {
 }
 
 function comment_time( $d = '' ) {
-	echo get_comment_time();
+	echo get_comment_time($d);
 }
 
 function get_trackback_url() {