1 files changed, 1 insertions, 1 deletions
diff --git a/tests/unittest.py b/tests/unittest.py
index 907b94b10a..c6d9064423 100644
--- a/tests/unittest.py
+++ b/tests/unittest.py
@@ -520,7 +520,7 @@ class HomeserverTestCase(TestCase):
         if not isinstance(deferred, Deferred):
             return d
 
-        results = []  # type: list
+        results: list = []
         deferred.addBoth(results.append)
 
         self.pump(by=by)