diff --git a/api_signaling.go b/api_signaling.go
index a2c81b9..61cfa45 100644
--- a/api_signaling.go
+++ b/api_signaling.go
@@ -655,7 +655,6 @@ type AnswerOfferMessage struct {
 	RoomType string                 `json:"roomType"`
 	Payload  map[string]interface{} `json:"payload"`
 	Sid      string                 `json:"sid,omitempty"`
-	Update   bool                   `json:"update,omitempty"`
 }
 
 // Type "transient"
diff --git a/clientsession.go b/clientsession.go
index 678d510..9270511 100644
--- a/clientsession.go
+++ b/clientsession.go
@@ -572,7 +572,6 @@ func (s *ClientSession) sendOffer(client McuClient, sender string, streamType st
 		RoomType: streamType,
 		Payload:  offer,
 		Sid:      client.Sid(),
-		Update:   true,
 	}
 	offer_data, err := json.Marshal(offer_message)
 	if err != nil {