diff --git a/admin/include/functions_install.inc.php b/admin/include/functions_install.inc.php
index e4d447eef..f2c934047 100644
--- a/admin/include/functions_install.inc.php
+++ b/admin/include/functions_install.inc.php
@@ -79,7 +79,7 @@ function activate_core_themes()
   $themes = new themes();
   foreach ($themes->fs_themes as $theme_id => $fs_theme)
   {
-    if (in_array($theme_id, array('elegant', 'Sylvia', 'clear', 'dark', 'smartpocket')))
+    if (in_array($theme_id, array('elegant', 'smartpocket')))
     {
       $themes->perform_action('activate', $theme_id);
     }