diff --git a/src/storage/lisk/dao/LiskDAO.php b/src/storage/lisk/dao/LiskDAO.php
index 045b22c2e3..ea9a6a04fb 100644
--- a/src/storage/lisk/dao/LiskDAO.php
+++ b/src/storage/lisk/dao/LiskDAO.php
@@ -450,7 +450,7 @@ abstract class LiskDAO {
   }
 
 
-  protected function loadRawDataWhere(array $columns, $pattern/*, $args... */) {
+  protected function loadRawDataWhere($columns, $pattern/*, $args... */) {
     $connection = $this->establishConnection('r');
 
     $lock_clause = '';