diff --git a/typo3/sysext/core/Tests/Functional/Cache/Backend/FileBackendTest.php b/typo3/sysext/core/Tests/Functional/Cache/Backend/FileBackendTest.php
index f298b6810c9823dd7ea672c35daa687779e8dfd1..5f4037e52223ff4baf80a4fea9c40f92ba18b5b0 100644
--- a/typo3/sysext/core/Tests/Functional/Cache/Backend/FileBackendTest.php
+++ b/typo3/sysext/core/Tests/Functional/Cache/Backend/FileBackendTest.php
@@ -599,7 +599,9 @@ class FileBackendTest extends FunctionalTestCase
         $subject->set('BackendFileTest2', $data, ['UnitTestTag%test', 'UnitTestTag%special'], -100);
         $subject->set('BackendFileTest3', $data, ['UnitTestTag%test']);
         self::assertSame([], $subject->findIdentifiersByTag('UnitTestTag%special'));
-        self::assertSame(['BackendFileTest3', 'BackendFileTest1'], $subject->findIdentifiersByTag('UnitTestTag%test'));
+        $actualEntries = $subject->findIdentifiersByTag('UnitTestTag%test');
+        self::assertContains('BackendFileTest1', $actualEntries);
+        self::assertContains('BackendFileTest3', $actualEntries);
     }
 
     /**