diff --git a/master/buildbot/test/unit/test_buildbot_net_usage_data.py b/master/buildbot/test/unit/test_buildbot_net_usage_data.py
index 709c804a9..7885d1bcd 100644
--- a/master/buildbot/test/unit/test_buildbot_net_usage_data.py
+++ b/master/buildbot/test/unit/test_buildbot_net_usage_data.py
@@ -153,4 +153,3 @@ class Tests(unittest.TestCase):
         distro = linux_distribution()
         self.assertEqual(len(distro), 2)
         self.assertNotIn("unknown", distro[0])
-        self.assertNotIn("unknown", distro[1])