1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/handlers/sliding_sync.py b/synapse/handlers/sliding_sync.py
index eb47569402..0c7299137d 100644
--- a/synapse/handlers/sliding_sync.py
+++ b/synapse/handlers/sliding_sync.py
@@ -2205,7 +2205,7 @@ class SlidingSyncHandler:
                 room_id = receipt["room_id"]
                 type = receipt["type"]
                 content = receipt["content"]
-                room_id_to_receipt_map[room_id] = {type: type, content: content}
+                room_id_to_receipt_map[room_id] = {"type": type, "content": content}
 
         return SlidingSyncResult.Extensions.ReceiptsExtension(
             room_id_to_receipt_map=room_id_to_receipt_map,