diff --git a/tests/test_utils_pv.py b/tests/test_utils_pv.py
index b87c08acd..2c324d33b 100644
--- a/tests/test_utils_pv.py
+++ b/tests/test_utils_pv.py
@@ -1,6 +1,7 @@
 import pytest
 import time
 import threading
+import builtins
 from io import StringIO
 import colorama
 from contextlib import contextmanager