diff --git wp-settings.php wp-settings.php
index 236615b..b07fa75 100644
--- wp-settings.php
+++ wp-settings.php
@@ -204,6 +204,9 @@ create_initial_post_types();
 
 // Register the default theme directory root
 register_theme_directory( get_theme_root() );
+if ( WP_CONTENT_DIR != ABSPATH . 'wp-content' ) {
+	register_theme_directory( ABSPATH . 'wp-content/themes' );
+}
 
 // Load active plugins.
 foreach ( wp_get_active_and_valid_plugins() as $plugin )