diff --git a/src/yunohost/tests/test_backuprestore.py b/src/yunohost/tests/test_backuprestore.py
index 5cffc186e..35a3e23f1 100644
--- a/src/yunohost/tests/test_backuprestore.py
+++ b/src/yunohost/tests/test_backuprestore.py
@@ -375,7 +375,7 @@ def test_backup_with_different_output_directory(mocker):
                       output_directory="/opt/test_backup_output_directory",
                       name="backup")
 
-    assert os.path.exists("/opt/test_backup_output_directory/backup.tar.gz")
+    assert os.path.exists("/opt/test_backup_output_directory/backup.tar")
 
     archives = backup_list()["archives"]
     assert len(archives) == 1