diff --git a/src/database/mongo.js b/src/database/mongo.js
index b91acde0cb..c9323df23a 100644
--- a/src/database/mongo.js
+++ b/src/database/mongo.js
@@ -139,7 +139,8 @@
 		} else if (nconf.get('mongo')) {
 			sessionStore = require('connect-mongo')(session);
 			module.sessionStore = new sessionStore({
-				db: db
+				db: db,
+				ttl: ttl
 			});
 		}