diff --git a/src/wp-includes/class.wp-scripts.php b/src/wp-includes/class.wp-scripts.php
index 05cde56170..97c49d30dc 100644
--- a/src/wp-includes/class.wp-scripts.php
+++ b/src/wp-includes/class.wp-scripts.php
@@ -178,7 +178,7 @@ class WP_Scripts extends WP_Dependencies {
 			$handle = 'jquery-core';
 
 		if ( is_callable( $l10n ) ) {
-			$l10n = call_user_func( $l10n );
+			$l10n = call_user_func( $l10n, $handle, $object_name );
 		}
 
 		if ( is_array($l10n) && isset($l10n['l10n_print_after']) ) { // back compat, preserve the code in 'l10n_print_after' if present