diff --git a/includes/registry.inc b/includes/registry.inc
index 8efaf0f..da86dfd 100644
--- a/includes/registry.inc
+++ b/includes/registry.inc
@@ -53,7 +53,7 @@ function _registry_rebuild() {
     // implementations.
     $module->info = drupal_parse_info_file($dir . '/' . $module->name . '.info');
 
-    if ($module->status) {
+    if (isset($module->status) && $module->status) {
       // Add files for enabled modules to the registry.
       foreach ($module->info['files'] as $file) {
         $files["$dir/$file"] = array('module' => $module->name, 'weight' => $module->weight);