diff --git a/themes/engines/phptemplate/phptemplate.engine b/themes/engines/phptemplate/phptemplate.engine
index d293b85..d356cee 100644
--- a/themes/engines/phptemplate/phptemplate.engine
+++ b/themes/engines/phptemplate/phptemplate.engine
@@ -10,7 +10,7 @@
  */
 function phptemplate_init($template) {
   $file = dirname($template->filename) . '/template.php';
-  if (file_exists($file)) {
+  if (file_exists(DRUPAL_ROOT . '/' . $file)) {
     include_once DRUPAL_ROOT . '/' . $file;
   }
 }