diff --git a/ajax_poll.js b/ajax_poll.js
index 6a79aa8..237c35c 100644
--- a/ajax_poll.js
+++ b/ajax_poll.js
@@ -24,6 +24,7 @@ Drupal.behaviors.ajaxPoll.attach = function(context) {
     var options = {
       url: url,
       beforeSubmit: function(values, form, options) {
+        $form.siblings('.messages--error').remove();
         if (disabledText) {
           $form.find('input.form-submit').attr('disabled', true).val(disabledText);
         }