diff --git a/apps/pos_device/web/api/v1/viewsets/device.py b/apps/pos_device/web/api/v1/viewsets/device.py
index 3662a16..bdc965d 100644
--- a/apps/pos_device/web/api/v1/viewsets/device.py
+++ b/apps/pos_device/web/api/v1/viewsets/device.py
@@ -221,8 +221,8 @@ class DeviceAssignmentViewSet(SoftDeleteMixin, viewsets.ModelViewSet):
 
             # set device status to assigned
             assignment.device.assigned_state = True
-            assignment.device.acceptor = data['device_acceptor']
-            assignment.device.terminal = data['device_terminal']
+            assignment.device.acceptor = data['acceptor']
+            assignment.device.terminal = data['terminal']
             if not assignment.device.password:
                 assignment.device.password = ''.join(random.choices(string.digits, k=6))
             assignment.device.save()