1 files changed, 1 insertions, 0 deletions

diff --git a/tox.ini b/tox.ini

index 88ef12bebd..ef22368cf1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -180,6 +180,7 @@ commands = mypy \
             synapse/api \
             synapse/config/ \
             synapse/federation/transport \
+            synapse/handlers/sync.py \
             synapse/handlers/ui_auth \
             synapse/logging/ \
             synapse/module_api \