diff --git a/upload/admin/controller/extension/module/smaily_for_opencart.php b/upload/admin/controller/extension/module/smaily_for_opencart.php
index 3131287b..c32baa20 100644
--- a/upload/admin/controller/extension/module/smaily_for_opencart.php
+++ b/upload/admin/controller/extension/module/smaily_for_opencart.php
@@ -571,9 +571,9 @@ protected function validate() {
         }
 
         // Validate RSS product limit value
-        if (isset($this->request->post['smaily_for_opencart_rss_limit'])
-        &&  ((int) $this->request->post['smaily_for_opencart_rss_limit'] < 1
-        || (int) $this->request->post['smaily_for_opencart_rss_limit'] > 250
+        if (isset($this->request->post['module_smaily_for_opencart_rss_limit'])
+        &&  ((int) $this->request->post['module_smaily_for_opencart_rss_limit'] < 1
+        || (int) $this->request->post['module_smaily_for_opencart_rss_limit'] > 250
         )) {
             $this->error['rss_limit'] = $this->language->get('rss_limit_error');
         }