diff --git a/controllers/device.controller.js b/controllers/device.controller.js
index eeb5ef4..2e45334 100644
--- a/controllers/device.controller.js
+++ b/controllers/device.controller.js
@@ -43,7 +43,8 @@ class DeviceController {
         return res.status(400).json(setResponse(errors, 'Validation failed', 400));
       }
 
-      const newDevice = await DeviceService.createDevice(value, req.user.userId);
+      const newDevice = await DeviceService.createDevice(value, req.user.user_id);
+
       return res.status(201).json(
         setResponse(newDevice, 'Device created successfully', 201)
       );
@@ -69,7 +70,7 @@ class DeviceController {
         return res.status(400).json(setResponse(errors, 'Validation failed', 400));
       }
 
-      const updatedDevice = await DeviceService.updateDevice(id, value, req.user.userId);
+      const updatedDevice = await DeviceService.updateDevice(id, value, req.user.user_Id);
 
       return res.status(200).json(
         setResponse(updatedDevice.data, 'Device updated successfully', 200)
diff --git a/services/device.service.js b/services/device.service.js
index a103836..b90c4ff 100644
--- a/services/device.service.js
+++ b/services/device.service.js
@@ -49,7 +49,7 @@ class DeviceService {
   }
 
   // Update device
-  static async updateDevice(id, data, userId) {
+  static async updateDevice(id, data, user_Id) {
     if (!data || typeof data !== 'object') data = {};
 
     const existingDevice = await getDeviceByIdDb(id);
@@ -57,7 +57,7 @@ class DeviceService {
       throw new ErrorHandler(404, 'Device not found');
     }
 
-    data.updated_by = userId;
+    data.updated_by = user_Id;
 
     const updatedDevice = await updateDeviceDb(id, data);