diff --git a/lib/Log.inc b/lib/Log.inc
index 4dc58b0..cfa44b0 100644
--- a/lib/Log.inc
+++ b/lib/Log.inc
@@ -1,5 +1,8 @@
 <?php
 
+require_once("$default->owl_fs_root/lib/database/datetime.inc");
+
+// define error levels
 define("DEBUG", 0);
 define("INFO", 1);
 define("ERROR", 2);