diff --git a/gns3server/config_samples/gns3_server.conf b/gns3server/config_samples/gns3_server.conf
index 248e18fcc..276987c45 100644
--- a/gns3server/config_samples/gns3_server.conf
+++ b/gns3server/config_samples/gns3_server.conf
@@ -4,6 +4,7 @@
 jwt_secret_key = efd08eccec3bd0a1be2e086670e5efa90969c68d07e072d7354a76cea5e33d4e
 jwt_algorithm = HS256
 jwt_access_token_expire_minutes = 1440
+jwt_refresh_token_expire_minutes = 43200
 
 ; Initial default super admin username
 ; It cannot be changed once the controller has started once