diff --git a/frontend/app/controllers/spree/checkout_controller.rb b/frontend/app/controllers/spree/checkout_controller.rb
index 312efe835d8..98261af11e3 100644
--- a/frontend/app/controllers/spree/checkout_controller.rb
+++ b/frontend/app/controllers/spree/checkout_controller.rb
@@ -167,8 +167,8 @@ def completion_route
     end
 
     def apply_coupon_code
-      if params[:order] && params[:order][:coupon_code].present?
-        @order.coupon_code = params[:order][:coupon_code]
+      if update_params[:coupon_code].present?
+        @order.coupon_code = update_params[:coupon_code]
 
         handler = PromotionHandler::Coupon.new(@order).apply
 
diff --git a/frontend/app/controllers/spree/orders_controller.rb b/frontend/app/controllers/spree/orders_controller.rb
index 013f1195a3b..d88028d9242 100644
--- a/frontend/app/controllers/spree/orders_controller.rb
+++ b/frontend/app/controllers/spree/orders_controller.rb
@@ -122,8 +122,8 @@ def assign_order
     end
 
     def apply_coupon_code
-      if params[:order] && params[:order][:coupon_code].present?
-        @order.coupon_code = params[:order][:coupon_code]
+      if order_params[:coupon_code].present?
+        @order.coupon_code = order_params[:coupon_code]
 
         handler = PromotionHandler::Coupon.new(@order).apply