diff --git a/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php b/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
index f050fa5..f0ba25d 100644
--- a/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
+++ b/core/modules/file/src/Tests/FileOnTranslatedEntityTest.php
@@ -137,7 +137,7 @@ public function testSyncedFiles() {
     // Ensure the first file still exists. Calling isPermanent() would crash
     // the test suite.
     $file = File::load($first_fid);
-    $this->assertTrue(!empty($file), 'First file still exists.');
+    $this->assertTrue(!empty($file) && $file->isPermanent(), 'First file still exists and is permanent.');
     // This inspects the HTML after the post of the translation, the file
     // should be displayed on the original node.
     $this->assertRaw('file--mime-text-plain');