diff --git a/config/index.js b/config/index.js
index d52b1e7..16b4376 100644
--- a/config/index.js
+++ b/config/index.js
@@ -5,5 +5,6 @@ module.exports = {
   port: process.env.PORT || 3000,
   proxyServer: process.env.PROXY_SERVER || undefined,
   secret: process.env.SECRET || require('./secret'),
+  sessionMaxAge: Number(process.env.SESSION_MAX_AGE) || 1000 * 60 * 60 * 24 * 7,
   siteTitle: process.env.SITE_TITLE || 'Christmas Community'
 };
diff --git a/index.js b/index.js
index 073959d..f2925cc 100644
--- a/index.js
+++ b/index.js
@@ -50,7 +50,10 @@ app.use(session({
   secret: config.secret,
   resave: false,
   saveUninitialized: true,
-  store: new LevelStore(sessionDb)
+  store: new LevelStore(sessionDb),
+  cookie: {
+    maxAge: config.sessionMaxAge
+  }
 }));
 app.use(flash());
 app.use(passport.initialize());