diff --git a/includes/environment.inc b/includes/environment.inc
index 218f265..858c665 100644
--- a/includes/environment.inc
+++ b/includes/environment.inc
@@ -287,7 +287,7 @@ function drush_site_path($path = NULL) {
  */
 function drush_conf_path($server_uri, $require_settings = TRUE) {
   $drupal_root = drush_get_context('DRUSH_SELECTED_DRUPAL_ROOT');
-  if(!isset($drupal_root) || !isset($server_uri)) {
+  if(!isset($drupal_root) || !isset($server_uri) || !$server_uri) {
     return NULL;
   }
   $parsed_uri = parse_url($server_uri);