1 files changed, 2 insertions, 6 deletions
diff --git a/synapse/federation/federation_client.py b/synapse/federation/federation_client.py
index 4cf4957a42..ba34573d46 100644
--- a/synapse/federation/federation_client.py
+++ b/synapse/federation/federation_client.py
@@ -280,15 +280,11 @@ class FederationClient(FederationBase):
         logger.debug("backfill transaction_data=%r", transaction_data)
 
         if not isinstance(transaction_data, dict):
-            # TODO we probably want an exception type specific to federation
-            # client validation.
-            raise TypeError("Backfill transaction_data is not a dict.")
+            raise InvalidResponseError("Backfill transaction_data is not a dict.")
 
         transaction_data_pdus = transaction_data.get("pdus")
         if not isinstance(transaction_data_pdus, list):
-            # TODO we probably want an exception type specific to federation
-            # client validation.
-            raise TypeError("transaction_data.pdus is not a list.")
+            raise InvalidResponseError("transaction_data.pdus is not a list.")
 
         room_version = await self.store.get_room_version(room_id)