diff --git a/src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py b/src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py
index 95a439f58a0..360588e38ce 100644
--- a/src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py
+++ b/src/python/grpcio_tests/tests/unit/_simple_stubs_py3_only_test.py
@@ -31,7 +31,7 @@ import sys
 import time
 from typing import Callable, Optional
 
-import test_common
+import tests.unit import test_common
 import grpc
 import grpc.experimental