diff --git a/htdocs/includes/modules/DolibarrModules.class.php b/htdocs/includes/modules/DolibarrModules.class.php
index ccf3db49316..80721aa00a3 100644
--- a/htdocs/includes/modules/DolibarrModules.class.php
+++ b/htdocs/includes/modules/DolibarrModules.class.php
@@ -590,8 +590,8 @@ class DolibarrModules
 				$file  = $this->boxes[$key][1];
 				//$note  = $this->boxes[$key][2];
 
-				$sql = "DELETE ".MAIN_DB_PREFIX."boxes";
-				$sql.= " FROM ".MAIN_DB_PREFIX."boxes, ".MAIN_DB_PREFIX."boxes_def";
+				$sql = "DELETE FROM ".MAIN_DB_PREFIX."boxes";
+				$sql.= " USING ".MAIN_DB_PREFIX."boxes, ".MAIN_DB_PREFIX."boxes_def";
 				$sql.= " WHERE ".MAIN_DB_PREFIX."boxes.box_id = ".MAIN_DB_PREFIX."boxes_def.rowid";
 				$sql.= " AND ".MAIN_DB_PREFIX."boxes_def.file = '".addslashes($file)."'";
 				$sql.= " AND ".MAIN_DB_PREFIX."boxes_def.entity = ".$conf->entity;