1 files changed, 1 insertions, 0 deletions
diff --git a/synapse/federation/units.py b/synapse/federation/units.py
index dccac2aca7..b2fb964180 100644
--- a/synapse/federation/units.py
+++ b/synapse/federation/units.py
@@ -118,6 +118,7 @@ class Pdu(JsonEncodedObject):
         """
         if pdu_tuple:
             d = copy.copy(pdu_tuple.pdu_entry._asdict())
+            d["origin_server_ts"] = d.pop("ts")
 
             d["content"] = json.loads(d["content_json"])
             del d["content_json"]