diff --git a/src/SessionManager.ts b/src/SessionManager.ts
index a0c6fb9..6d073ce 100644
--- a/src/SessionManager.ts
+++ b/src/SessionManager.ts
@@ -24,6 +24,7 @@ export class SessionManager {
       (new Date().getTime() - new Date(session!.creationTimeStamp).getTime()) /
       1000
     if (
+      !session!.attributes ||
       secondsSinceSessionCreation >= session!.attributes.sessionInactiveTimeout
     ) {
       await this.createSessions(accessToken)