diff --git a/src/matrix/calls/group/Member.ts b/src/matrix/calls/group/Member.ts
index 7d849929..3eb5f17f 100644
--- a/src/matrix/calls/group/Member.ts
+++ b/src/matrix/calls/group/Member.ts
@@ -125,7 +125,7 @@ export class Member {
         const payload = {
             messages: {
                 [this.member.userId]: {
-                    [this.callDeviceMembership.device_id]: groupMessage.content
+                    [this.deviceId]: groupMessage.content
                 }
             }
         };