diff --git a/src/wp-includes/general-template.php b/src/wp-includes/general-template.php
index bb711fe5fd..6bcd79d0b8 100644
--- a/src/wp-includes/general-template.php
+++ b/src/wp-includes/general-template.php
@@ -903,10 +903,12 @@ function get_custom_logo( $blog_id = 0 ) {
 	 * Filters the custom logo output.
 	 *
 	 * @since 4.5.0
+	 * @since 4.6.0 Added the `$blog_id` parameter.
 	 *
-	 * @param string $html Custom logo HTML output.
+	 * @param string $html    Custom logo HTML output.
+	 * @param int    $blog_id ID of the blog to get the custom logo for.
 	 */
-	return apply_filters( 'get_custom_logo', $html );
+	return apply_filters( 'get_custom_logo', $html, $blog_id );
 }
 
 /**