diff --git a/Amasty_GiftCard/web/js/giftcard-mixin.js b/Amasty_GiftCard/web/js/giftcard-mixin.js
index 1d73dac24..5eebbe3f3 100644
--- a/Amasty_GiftCard/web/js/giftcard-mixin.js
+++ b/Amasty_GiftCard/web/js/giftcard-mixin.js
@@ -1,4 +1,4 @@
-define([], function () {
+define(['jquery'], function ($) {
   'use strict';
 
   return function (Component) {
@@ -7,7 +7,18 @@ define([], function () {
         element: {
           addToCardButton: '.tocart',
         }
-      }
+      },
+      validateForm: function (event) {
+        var textareaValue = $(this.element.textarea).val();
+        var isValidTextarea = textareaValue ? textareaValue.length < this.maxLength : true;
+
+        if ($('#product_addtocart_form').validate().form() && isValidTextarea) {
+          return;
+        }
+
+        event.preventDefault();
+        event.stopPropagation();
+      },
     });
   };
 });