diff --git a/lib/roles/app.js b/lib/roles/app.js
index 97fd73c3..f88b9fec 100644
--- a/lib/roles/app.js
+++ b/lib/roles/app.js
@@ -265,7 +265,7 @@ module.exports = function(options) {
         , present: false
         , ready: false
         , lastHeartbeatAt: null
-        , isOwnedByUser: false
+        , using: false
         })
       })
       .on(wire.JoinGroupMessage, function(channel, message) {
diff --git a/lib/util/datautil.js b/lib/util/datautil.js
index 10ecb67b..0dafb3f0 100644
--- a/lib/util/datautil.js
+++ b/lib/util/datautil.js
@@ -51,7 +51,7 @@ module.exports.applyData = function(device) {
 }
 
 module.exports.applyOwner = function(device, user) {
-  device.isOwnedByUser = !!device.owner && device.owner.email === user.email
+  device.using = !!device.owner && device.owner.email === user.email
   return device
 }
 
diff --git a/res/app/components/stf/device/device-service.js b/res/app/components/stf/device/device-service.js
index 196634c1..94b03087 100644
--- a/res/app/components/stf/device/device-service.js
+++ b/res/app/components/stf/device/device-service.js
@@ -22,7 +22,7 @@ module.exports = function DeviceServiceFactory($rootScope, $http, socket) {
       // preparations are ready AND the device has no owner or we are the
       // owner
       data.usable = data.present && data.status === 3 && data.ready &&
-        (!data.owner || data.isOwnedByUser)
+        (!data.owner || data.using)
     }
 
     function get(data) {