diff --git a/src/src/utilities/class-wp-filesystem-utility.php b/src/src/utilities/class-wp-filesystem-utility.php
index 0c7f9af..3318e6f 100644
--- a/src/src/utilities/class-wp-filesystem-utility.php
+++ b/src/src/utilities/class-wp-filesystem-utility.php
@@ -75,8 +75,9 @@ public static function get_filesystem(): object {
 
 		if ( null === self::$filesystem ) {
 
+			require_once \ABSPATH . 'wp-admin/includes/file.php';
 			\WP_Filesystem();
-			self::$filesystem = new WP_Filesystem_Direct( true );
+			self::$filesystem = new \WP_Filesystem_Direct( true );
 		}
 
 		return self::$filesystem;