diff --git a/tests/test_distgit.py b/tests/test_distgit.py
index 0b90f6c..257aa13 100644
--- a/tests/test_distgit.py
+++ b/tests/test_distgit.py
@@ -17,7 +17,7 @@ class TestDistGitInvalid(unittest.TestCase, CatchWarningsMixin):
     def test_invalid_branchstring_raises(self):
         self.branchstring = 'nope-not-a-branch'
 
-        with self.assertRaises(UserWarning):
+        with self.assertWarns(UserWarning):
             self.d = DistGitDirectory(self.branchstring)
 
 class TestDistgitOnlySig(unittest.TestCase):