diff --git a/app/Endpoint/Api/Http/Controllers/Auth/LogoutController.php b/app/Endpoint/Api/Http/Controllers/Auth/LogoutController.php
index 0ffdc575..5410db39 100644
--- a/app/Endpoint/Api/Http/Controllers/Auth/LogoutController.php
+++ b/app/Endpoint/Api/Http/Controllers/Auth/LogoutController.php
@@ -19,24 +19,26 @@ class LogoutController extends Controller
         if ($user = $request->user()) {
             $user->currentAccessToken()->delete();
 
-            // 获取登录设备
-            $device = $request->header('client-app', Device::UNIAPP);
+            if ($cid = $user->cid) {
+                // 获取登录设备
+                $device = $request->header('client-app', Device::UNIAPP);
 
-            switch ($device) {
-                case Device::MERCHANT:
-                    //解绑用户商家端cid
-                    $user->cid->update([
-                        'm_cid'=>null,
-                    ]);
-                    break;
-                case Device::DEALER:
-                    break;
-                default:
-                    //解绑用户商城端cid
-                    $user->cid->update([
-                        'u_cid'=>null,
-                    ]);
-                    break;
+                switch ($device) {
+                    case Device::MERCHANT:
+                        // 解绑用户商家端cid
+                        $cid->update([
+                            'm_cid' => null,
+                        ]);
+                        break;
+                    case Device::DEALER:
+                        break;
+                    default:
+                        // 解绑用户商城端cid
+                        $cid->update([
+                            'u_cid' => null,
+                        ]);
+                        break;
+                }
             }
         }