diff --git a/gui/default/untrusted/syncthing/core/syncthingController.js b/gui/default/untrusted/syncthing/core/syncthingController.js
index 4d6b7e318..f2f2696d3 100755
--- a/gui/default/untrusted/syncthing/core/syncthingController.js
+++ b/gui/default/untrusted/syncthing/core/syncthingController.js
@@ -1650,7 +1650,7 @@ angular.module('syncthing.core')
         };
 
         function setDeviceConfig() {
-            var currentID = $scope.currentDevice.DeviceID;
+            var currentID = $scope.currentDevice.deviceID;
             $scope.devices[currentID] = $scope.currentDevice;
             $scope.config.devices = deviceList($scope.devices);