diff --git a/tests/test_mp3.py b/tests/test_mp3.py
index <HASH>..<HASH> 100644
--- a/tests/test_mp3.py
+++ b/tests/test_mp3.py
@@ -3,5 +3,5 @@ import unittest
 import base
 
 
-class Mp3TestCase(base.BaseParserTestCase, unittest.TestCase):
+class Mp3TestCase(base.ShellParserTestCase, unittest.TestCase):
     extension = 'mp3'
diff --git a/tests/test_ogg.py b/tests/test_ogg.py
index <HASH>..<HASH> 100644
--- a/tests/test_ogg.py
+++ b/tests/test_ogg.py
@@ -3,5 +3,5 @@ import unittest
 import base
 
 
-class OggTestCase(base.BaseParserTestCase, unittest.TestCase):
+class OggTestCase(base.ShellParserTestCase, unittest.TestCase):
     extension = 'ogg'
switched to ShellParserTestCase