diff --git a/framework/base/helper.class.php b/framework/base/helper.class.php
index 9eb7388355..aa2a2dbee8 100644
--- a/framework/base/helper.class.php
+++ b/framework/base/helper.class.php
@@ -220,7 +220,8 @@ class baseHelper
             return "IN ('" . join("','", $idList) . "')";
         }
 
-        if((!function_exists('get_magic_quotes_gpc') or !get_magic_quotes_gpc()) and is_string($idList)) $idList = addslashes($idList);
+        if(!is_string($idList)) $idList = json_encode($idList);
+        if(!function_exists('get_magic_quotes_gpc') or !get_magic_quotes_gpc()) $idList = addslashes($idList);
         return "IN ('" . str_replace(',', "','", str_replace(' ', '', $idList)) . "')";
     }