diff --git a/js/recaptcha.invisible.js b/js/recaptcha.invisible.js
index 8093b6f..59b1276 100644
--- a/js/recaptcha.invisible.js
+++ b/js/recaptcha.invisible.js
@@ -92,7 +92,7 @@ function recaptchaOnInvisibleSubmit() {
         if (grecaptcha.getResponse().length === 0) {
           // We need validate form, to avoid prevention of html5 validation.
           var form = $(elem).closest('form')[0];
-          if (form && typeof form.checkValidity === 'function') {
+          if (form && typeof form.checkValidity === 'function' && !$(form).attr('validate')) {
             if (form.checkValidity()) {
               event.preventDefault();
               event.stopPropagation();