diff --git a/src/wp-includes/comment-functions.php b/src/wp-includes/comment-functions.php
index 2de0322865..155e7b4da0 100644
--- a/src/wp-includes/comment-functions.php
+++ b/src/wp-includes/comment-functions.php
@@ -1646,13 +1646,14 @@ function wp_new_comment( $commentdata ) {
  *
  * @since 4.4.0
  *
- * @param int $comment_ID       ID of the comment.
- * @param int $comment_approved Whether the comment is approved.
+ * @param int $comment_ID ID of the comment.
  * @return bool True on success, false on failure.
  */
-function wp_new_comment_notify_moderator( $comment_ID, $comment_approved ) {
+function wp_new_comment_notify_moderator( $comment_ID ) {
+	$comment = get_comment( $comment_ID );
+
 	// Only send notifications for pending comments.
-	if ( '0' != $comment_approved ) {
+	if ( '0' != $comment->comment_approved ) {
 		return false;
 	}
 
diff --git a/src/wp-includes/default-filters.php b/src/wp-includes/default-filters.php
index 4081be43c1..f9fd9c47c9 100644
--- a/src/wp-includes/default-filters.php
+++ b/src/wp-includes/default-filters.php
@@ -336,7 +336,7 @@ add_action( 'split_shared_term', '_wp_check_split_nav_menu_terms', 10, 4 );
 add_action( 'wp_split_shared_term_batch', '_wp_batch_split_terms' );
 
 // Email notifications.
-add_action( 'comment_post', 'wp_new_comment_notify_moderator', 10, 2 );
+add_action( 'comment_post', 'wp_new_comment_notify_moderator' );
 add_action( 'comment_post', 'wp_new_comment_notify_postauthor' );
 add_action( 'after_password_reset', 'wp_password_change_notification' );
 add_action( 'register_new_user',      'wp_send_new_user_notifications' );