diff --git a/lib/mediaconnection.ts b/lib/mediaconnection.ts
index bd2277750..4ec0323b3 100644
--- a/lib/mediaconnection.ts
+++ b/lib/mediaconnection.ts
@@ -76,7 +76,7 @@ export class MediaConnection extends BaseConnection {
 		}
 	}
 
-	answer(stream: MediaStream, options: AnswerOption = {}): void {
+	answer(stream?: MediaStream, options: AnswerOption = {}): void {
 		if (this._localStream) {
 			logger.warn(
 				"Local stream already exists on this MediaConnection. Are you answering a call twice?",