diff --git a/wp-includes/capabilities.php b/wp-includes/capabilities.php
index 2279c16b62..e744175c9c 100644
--- a/wp-includes/capabilities.php
+++ b/wp-includes/capabilities.php
@@ -432,6 +432,10 @@ function map_meta_cap( $cap, $user_id ) {
 		break;
 	case 'install_languages':
 	case 'update_languages':
+		if ( ! function_exists( 'request_filesystem_credentials' ) ) {
+			require_once( ABSPATH . 'wp-admin/includes/file.php' );
+		}
+
 		if ( ! function_exists( 'wp_can_install_language_pack' ) ) {
 			require_once( ABSPATH . 'wp-admin/includes/translation-install.php' );
 		}
diff --git a/wp-includes/version.php b/wp-includes/version.php
index 3c2222f08e..1407a55aef 100644
--- a/wp-includes/version.php
+++ b/wp-includes/version.php
@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.9-beta2-41884';
+$wp_version = '4.9-beta2-41885';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.