diff --git a/registry_rebuild.drush.inc b/registry_rebuild.drush.inc
index 7ee5100a05ebe78aecdcb5e03103d1d6d33be049..12b955a76a71301fa05415039afc9b8ddedbe99f 100644
--- a/registry_rebuild.drush.inc
+++ b/registry_rebuild.drush.inc
@@ -70,6 +70,7 @@ function drush_registry_rebuild() {
     $include_dir . '/menu.inc',
     $include_dir . '/file.inc', 
     $include_dir . '/lock.inc',
+    $include_dir . '/theme.inc',
   );
 
   foreach ($includes as $include) {
diff --git a/registry_rebuild.php b/registry_rebuild.php
index a89510c594ad13b69e2a789483fd8ac874c8e32e..2fdf8db40f83f6017aaa95318a93baba389a8c52 100644
--- a/registry_rebuild.php
+++ b/registry_rebuild.php
@@ -37,6 +37,7 @@ $includes = array(
   $include_dir . '/registry.inc',
   $include_dir . '/module.inc',
   $include_dir . '/lock.inc',
+  $include_dir . '/theme.inc',
 );
 
 foreach ($includes as $include) {