diff --git a/CRM/Export/Form/Select.php b/CRM/Export/Form/Select.php
index d7f0c22f0868..f1575a8b29af 100644
--- a/CRM/Export/Form/Select.php
+++ b/CRM/Export/Form/Select.php
@@ -78,6 +78,8 @@ class CRM_Export_Form_Select extends CRM_Core_Form {
    * @return void
    */
   public function preProcess() {
+    $this->preventAjaxSubmit();
+
     //special case for custom search, directly give option to download csv file
     $customSearchID = $this->get('customSearchID');
     if ($customSearchID) {