diff --git a/packages/Webkul/CartRule/src/Http/Controllers/CartRuleController.php b/packages/Webkul/CartRule/src/Http/Controllers/CartRuleController.php
index 0705841fe..459788067 100644
--- a/packages/Webkul/CartRule/src/Http/Controllers/CartRuleController.php
+++ b/packages/Webkul/CartRule/src/Http/Controllers/CartRuleController.php
@@ -180,7 +180,6 @@ class CartRuleController extends Controller
                 'customer_groups'     => 'required|array|min:1',
                 'coupon_type'         => 'required',
                 'use_auto_generation' => 'required_if:coupon_type,==,1',
-                'coupon_code'         => 'required_if:use_auto_generation,==,0|unique:cart_rule_coupons,code,' . $id,
                 'starts_from'         => 'nullable|date',
                 'ends_till'           => 'nullable|date|after_or_equal:starts_from',
                 'action_type'         => 'required',
@@ -189,6 +188,12 @@ class CartRuleController extends Controller
 
             $cartRule = $this->cartRuleRepository->findOrFail($id);
 
+            if ($cartRule->coupon_type) {
+                $this->validate(request(), [
+                    'coupon_code' => 'required_if:use_auto_generation,==,0|unique:cart_rule_coupons,code,' . $cartRule->cart_rule_coupon->id,
+                ]);
+            }
+
             Event::dispatch('promotions.cart_rule.update.before', $cartRule);
 
             $cartRule = $this->cartRuleRepository->update(request()->all(), $id);