diff --git a/lib/session/call-session.js b/lib/session/call-session.js
index c5b1322b..1c6ac981 100644
--- a/lib/session/call-session.js
+++ b/lib/session/call-session.js
@@ -909,7 +909,7 @@ class CallSession extends Emitter {
     this.callInfo.updateCallStatus(callStatus, sipStatus);
     if (typeof duration === 'number') this.callInfo.duration = duration;
     try {
-      this.notifier.request(this.call_status_hook, this.callInfo);
+      this.notifier.request(this.call_status_hook, this.callInfo.toJSON());
     } catch (err) {
       this.logger.info(err, `CallSession:_notifyCallStatusChange error sending ${callStatus} ${sipStatus}`);
     }