diff --git a/mkht.php b/mkht.php
index 99429f8..3be815c 100755
--- a/mkht.php
+++ b/mkht.php
@@ -9,7 +9,12 @@ define("FIND", "/usr/bin/find");
 define("GZIP", "/usr/bin/gzip");
 
 define("ROOT", dirname($_SERVER['SCRIPT_FILENAME']));
-define("SITE", $argv[1]);
+
+if (isset($argv[1]))
+  define("SITE", $argv[1]);
+else
+  define("SITE", getcwd());
+
 if (isset($argv[2]))
   define("DESTINATION", $argv[2]);
 else