diff --git a/src/wp-includes/feed.php b/src/wp-includes/feed.php
index 74a4b5009a..4532697ea5 100644
--- a/src/wp-includes/feed.php
+++ b/src/wp-includes/feed.php
@@ -150,11 +150,13 @@ function wp_title_rss( $deprecated = '–' ) {
  * Retrieves the current post title for the feed.
  *
  * @since 2.0.0
+ * @since 6.6.0 Added the `$post` parameter.
  *
+ * @param int|WP_Post $post Optional. Post ID or WP_Post object. Default is global $post.
  * @return string Current post title.
  */
-function get_the_title_rss() {
-	$title = get_the_title();
+function get_the_title_rss( $post = 0 ) {
+	$title = get_the_title( $post );
 
 	/**
 	 * Filters the post title for use in a feed.