1 files changed, 7 insertions, 4 deletions
diff --git a/synapse/appservice/api.py b/synapse/appservice/api.py
index 60774b240d..edafd433cd 100644
--- a/synapse/appservice/api.py
+++ b/synapse/appservice/api.py
@@ -23,7 +23,7 @@ from synapse.api.constants import EventTypes, Membership, ThirdPartyEntityKind
 from synapse.api.errors import CodeMessageException
 from synapse.appservice import (
     ApplicationService,
-    TransactionOneTimeKeyCounts,
+    TransactionOneTimeKeysCount,
     TransactionUnusedFallbackKeys,
 )
 from synapse.events import EventBase
@@ -262,7 +262,7 @@ class ApplicationServiceApi(SimpleHttpClient):
         events: List[EventBase],
         ephemeral: List[JsonDict],
         to_device_messages: List[JsonDict],
-        one_time_key_counts: TransactionOneTimeKeyCounts,
+        one_time_keys_count: TransactionOneTimeKeysCount,
         unused_fallback_keys: TransactionUnusedFallbackKeys,
         device_list_summary: DeviceListUpdates,
         txn_id: Optional[int] = None,
@@ -310,10 +310,13 @@ class ApplicationServiceApi(SimpleHttpClient):
 
         # TODO: Update to stable prefixes once MSC3202 completes FCP merge
         if service.msc3202_transaction_extensions:
-            if one_time_key_counts:
+            if one_time_keys_count:
                 body[
                     "org.matrix.msc3202.device_one_time_key_counts"
-                ] = one_time_key_counts
+                ] = one_time_keys_count
+                body[
+                    "org.matrix.msc3202.device_one_time_keys_count"
+                ] = one_time_keys_count
             if unused_fallback_keys:
                 body[
                     "org.matrix.msc3202.device_unused_fallback_key_types"