diff --git a/tests/unit/lib/utils/test_file_utils.py b/tests/unit/lib/utils/test_file_utils.py
index 8a23f7bc8c..c26eb3c7de 100644
--- a/tests/unit/lib/utils/test_file_utils.py
+++ b/tests/unit/lib/utils/test_file_utils.py
@@ -8,6 +8,7 @@
 class TestFile(TestCase):
     def test_file_remove(self):
         _file = tempfile.NamedTemporaryFile(delete=False)
+        _file.close()
         remove(_file.name)
         self.assertFalse(os.path.exists(_file.name))
         # No Exception thrown