diff --git a/classes/helper/HelperList.php b/classes/helper/HelperList.php
index f29d98fa3..0686a9dcf 100644
--- a/classes/helper/HelperList.php
+++ b/classes/helper/HelperList.php
@@ -623,7 +623,7 @@ public function displayListHeader()
                     if (is_string($value)) {
                         $value = json_decode($value, true);
                     }
-                    if (isset($value[0]) && !Validate::isCleanHtml($value[0]) || isset($value[0]) && !Validate::isCleanHtml($value[1])) {
+                    if (isset($value[0]) && !Validate::isCleanHtml($value[0]) || isset($value[1]) && !Validate::isCleanHtml($value[1])) {
                         $value = '';
                     }
                     $name = $this->list_id.'Filter_'.(isset($params['filter_key']) ? $params['filter_key'] : $key);