diff --git a/tests/codec/ber/test_encoder.py b/tests/codec/ber/test_encoder.py
index 153ebd7d..265e8660 100644
--- a/tests/codec/ber/test_encoder.py
+++ b/tests/codec/ber/test_encoder.py
@@ -20,7 +20,7 @@
 from pyasn1.error import PyAsn1Error
 
 
-class LargeTagEncoderTestCase(unittest.TestCase):
+class LargeTagEncoderTestCase(BaseTestCase):
     def setUp(self):
         BaseTestCase.setUp(self)