diff --git a/lib/wsapi.js b/lib/wsapi.js
index c46a24234472e34010d62dd83a9c04542ef4ce0c..b768db346b82e57b2862d7e0a936b7f2e3947caa 100644
--- a/lib/wsapi.js
+++ b/lib/wsapi.js
@@ -103,7 +103,6 @@ exports.setup = function(options, app) {
       // IMPORTANT: we allow users to go 1 weeks on the same device
       // without entering their password again
       maxAge: config.get('authentication_duration_ms'),
-      domain: config.get('hostname'),
       secure: overSSL
     }
   });