diff --git a/synapse/federation/federation_server.py b/synapse/federation/federation_server.py
index 3bdc6024f..98722ae54 100644
--- a/synapse/federation/federation_server.py
+++ b/synapse/federation/federation_server.py
@@ -182,7 +182,7 @@ class FederationServer(FederationBase):
                 # PDU into an event.
                 yield self.store.get_room_version(room_id)
             except NotFoundError:
-                logger.info("Ignoring PUD for unknown room_id: %s", room_id)
+                logger.info("Ignoring PDU for unknown room_id: %s", room_id)
                 continue
 
             event = event_from_pdu_json(p)