1 files changed, 2 insertions, 2 deletions
diff --git a/synapse/storage/data_stores/main/deviceinbox.py b/synapse/storage/data_stores/main/deviceinbox.py
index a23744f11c..206d39134d 100644
--- a/synapse/storage/data_stores/main/deviceinbox.py
+++ b/synapse/storage/data_stores/main/deviceinbox.py
@@ -314,7 +314,7 @@ class DeviceInboxStore(DeviceInboxWorkerStore, DeviceInboxBackgroundUpdateStore)
             # Check if we've already inserted a matching message_id for that
             # origin. This can happen if the origin doesn't receive our
             # acknowledgement from the first time we received the message.
-            already_inserted = self._simple_select_one_txn(
+            already_inserted = self.simple_select_one_txn(
                 txn,
                 table="device_federation_inbox",
                 keyvalues={"origin": origin, "message_id": message_id},
@@ -326,7 +326,7 @@ class DeviceInboxStore(DeviceInboxWorkerStore, DeviceInboxBackgroundUpdateStore)
 
             # Add an entry for this message_id so that we know we've processed
             # it.
-            self._simple_insert_txn(
+            self.simple_insert_txn(
                 txn,
                 table="device_federation_inbox",
                 values={