diff --git a/hwe/j_install_db.php b/hwe/j_install_db.php
index 44f18e79..66789a29 100644
--- a/hwe/j_install_db.php
+++ b/hwe/j_install_db.php
@@ -65,6 +65,11 @@ $db->addHook('run_failed', function(){
 
 $mysqli_obj = $db->get();
 
+//unset db object
+unset($mysqli_obj);
+unset($db);
+
+
 $prefix = basename(__DIR__);
 
 $result = Util::generateFileUsingSimpleTemplate(