1 files changed, 3 insertions, 5 deletions
diff --git a/src/org/traccar/database/DeviceManager.java b/src/org/traccar/database/DeviceManager.java
index 5681602fe..600669579 100644
--- a/src/org/traccar/database/DeviceManager.java
+++ b/src/org/traccar/database/DeviceManager.java
@@ -401,14 +401,12 @@ public class DeviceManager implements IdentityManager {
         String result = null;
         Device device = getDeviceById(deviceId);
         if (device != null) {
-            if (device.getAttributes().containsKey(attributeName)) {
-                result = (String) device.getAttributes().get(attributeName);
-            }
+            result = device.getString(attributeName);
             if (result == null && lookupGroupsAttribute) {
                 long groupId = device.getGroupId();
                 while (groupId != 0) {
                     if (getGroupById(groupId) != null) {
-                        result = (String)  getGroupById(groupId).getAttributes().get(attributeName);
+                        result = getGroupById(groupId).getString(attributeName);
                         if (result != null) {
                             break;
                         }
@@ -421,7 +419,7 @@ public class DeviceManager implements IdentityManager {
             if (result == null) {
                 if (lookupServer) {
                     Server server = Context.getPermissionsManager().getServer();
-                    result = (String) server.getAttributes().get(attributeName);
+                    result = server.getString(attributeName);
                 } else {
                     result = Context.getConfig().getString(attributeName);
                 }