diff --git a/lib/logout.js b/lib/logout.js
index 7e28423..27d1297 100644
--- a/lib/logout.js
+++ b/lib/logout.js
@@ -16,7 +16,7 @@ var STATUS = constants.STATUS;
 
 // Analyze if we should merge session handler and store
 module.exports.logout = function (options) {
-  options.sessionParticipants = options.sessionParticipants || new SessionParticipants();
+  options.sessionParticipants = new SessionParticipants(options.sessionParticipants) || new SessionParticipants();
   options.clearIdPSession = options.clearIdPSession || function (cb){ return cb(); };
   options.store = options.store || new SessionStore({ key: '_logoutState'});
 
@@ -378,4 +378,4 @@ module.exports.sendLogoutError = function(options){
     
     return prepareAndSendToken(req, res, 'LOGOUT_RESPONSE', logoutResponse, options, next);
   };
-};
\ No newline at end of file
+};