diff --git a/core/modules/system/tests/src/Functional/FileTransfer/TestFileTransfer.php b/core/modules/system/tests/src/Functional/FileTransfer/TestFileTransfer.php
index 48e57845dd..fe3934ee20 100644
--- a/core/modules/system/tests/src/Functional/FileTransfer/TestFileTransfer.php
+++ b/core/modules/system/tests/src/Functional/FileTransfer/TestFileTransfer.php
@@ -47,9 +47,7 @@ public function createDirectoryJailed($directory) {
   }
 
   public function removeFileJailed($destination) {
-    if (!ftp_delete($this->connection, $item)) {
-      throw new FileTransferException('Unable to remove the file @file.', NULL, ['@file' => $item]);
-    }
+    $this->connection->run("rm $destination");
   }
 
   public function isDirectory($path) {