1 files changed, 1 insertions, 0 deletions
diff --git a/tox.ini b/tox.ini
index 31011d7436..72f8bc7a5e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -204,6 +204,7 @@ commands = mypy \
             synapse/storage/database.py \
             synapse/streams \
             synapse/util/caches/stream_change_cache.py \
+            tests/test_utils \
             tests/util/test_stream_change_cache.py
 
 # To find all folders that pass mypy you run: