diff --git a/data/api/server-server/examples/unsigned_pdu_base.json b/data/api/server-server/examples/unsigned_pdu_base.json
index 4826ccef..079ee1ea 100644
--- a/data/api/server-server/examples/unsigned_pdu_base.json
+++ b/data/api/server-server/examples/unsigned_pdu_base.json
@@ -1,7 +1,6 @@
 {
     "room_id": "!UcYsUzyxTGDxLBEvLy:example.org",
     "sender": "@alice:example.com",
-    "origin": "example.com",
     "origin_server_ts": 1404838188000,
     "depth": 12,
     "auth_events": [