diff --git a/src/pages/menuPages/customers/base/index.vue b/src/pages/menuPages/customers/base/index.vue
index c6fcd9c..9f32f46 100644
--- a/src/pages/menuPages/customers/base/index.vue
+++ b/src/pages/menuPages/customers/base/index.vue
@@ -77,7 +77,7 @@
               keyName="key"
             />
           </a-form-item>
-          <a-form-item label="کد معرف" name="n_code">
+          <a-form-item label="کد معرف" name="n_code" :rules="inputRules()">
             <BasicInput v-model:value="form.referral_to_id" :disabled="editId" />
           </a-form-item>
           <a-form-item v-if="editId" label="سقف اعتبار" name="gram" :rules="inputRules()">