diff --git a/types/index.d.ts b/types/index.d.ts
index b3b764d8..5f969189 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -54,6 +54,7 @@ export interface CreateSessionOptions {
   sessionId: string;
   token: string;
   onStreamsUpdated?: (streams: Stream[]) => void;
+  onError?: (error: Error) => void;
 }
 
 export interface SessionHelper {