diff --git a/tests/integration/REST/BaseAdminUiRestWebTestCase.php b/tests/integration/REST/BaseAdminUiRestWebTestCase.php
index 9fe370236a..c6b85e9c47 100644
--- a/tests/integration/REST/BaseAdminUiRestWebTestCase.php
+++ b/tests/integration/REST/BaseAdminUiRestWebTestCase.php
@@ -103,7 +103,7 @@ private function mockSymfonyUser(User $ibexaUser): UserInterface
     {
         $symfonyUser = $this->createMock(UserInterface::class);
         $symfonyUser->method('getRoles')->willReturn(['ROLE_USER']);
-        $symfonyUser->method('getUsername')->willReturn($ibexaUser->login);
+        $symfonyUser->method('getUserIdentifier')->willReturn($ibexaUser->login);
 
         return new UserWrapped($symfonyUser, $ibexaUser);
     }