diff --git a/wp-admin/upload.php b/wp-admin/upload.php
index f679eb9d67..cb6c6cb608 100644
--- a/wp-admin/upload.php
+++ b/wp-admin/upload.php
@@ -249,7 +249,7 @@ if ( 'grid' === $mode ) {
 		wp_admin_notice(
 			$js_required_message,
 			array(
-				additional_classes( 'error', 'hide-if-js' ),
+				'additional_classes' => array( 'error', 'hide-if-js' ),
 			)
 		);
 		?>
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 9f8352a55d..4750c70b6d 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -16,7 +16,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '6.4-alpha-56589';
+$wp_version = '6.4-alpha-56590';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.