diff --git a/wp-admin/network/site-themes.php b/wp-admin/network/site-themes.php
index 3c47634e8f..3c8c21305b 100644
--- a/wp-admin/network/site-themes.php
+++ b/wp-admin/network/site-themes.php
@@ -13,6 +13,16 @@ require_once( './admin.php' );
 if ( ! is_multisite() )
 	wp_die( __( 'Multisite support is not enabled.' ) );
 
+$menu_perms = get_site_option( 'menu_items', array() );
+
+if ( empty( $menu_perms['themes'] ) ) {
+	if ( !is_super_admin() )
+		wp_die( __( 'Cheatin’ uh?' ) );
+}
+
+if ( !current_user_can('manage_sites') )
+	wp_die( __( 'You do not have sufficient permissions to manage themes for this site.' ) );
+
 $wp_list_table = get_list_table('WP_MS_Themes_List_Table');
 $wp_list_table->check_permissions();
 
diff --git a/wp-admin/network/themes.php b/wp-admin/network/themes.php
index 08a3356668..cb3aa45a6b 100644
--- a/wp-admin/network/themes.php
+++ b/wp-admin/network/themes.php
@@ -13,6 +13,16 @@ require_once( './admin.php' );
 if ( ! is_multisite() )
 	wp_die( __( 'Multisite support is not enabled.' ) );
 
+$menu_perms = get_site_option( 'menu_items', array() );
+
+if ( empty( $menu_perms['themes'] ) ) {
+	if ( !is_super_admin() )
+		wp_die( __( 'Cheatin’ uh?' ) );
+}
+
+if ( !current_user_can('manage_network_themes') )
+	wp_die( __( 'You do not have sufficient permissions to manage network themes.' ) );
+
 $wp_list_table = get_list_table('WP_MS_Themes_List_Table');
 $wp_list_table->check_permissions();