diff --git a/database/2018_12_07_175328_add_switch_friendcode_field.php b/database/2018_12_07_175328_add_switch_friendcode_field.php
new file mode 100644
index 00000000..179c7ec2
--- /dev/null
+++ b/database/2018_12_07_175328_add_switch_friendcode_field.php
@@ -0,0 +1,20 @@
+<?php
+namespace Misuzu\DatabaseMigrations\AddSwitchFriendcodeField;
+
+use PDO;
+
+function migrate_up(PDO $conn): void
+{
+    $conn->exec("
+        ALTER TABLE `msz_users`
+            ADD COLUMN `user_ninswitch` VARCHAR(14) NOT NULL DEFAULT '' AFTER `user_steam`;
+    ");
+}
+
+function migrate_down(PDO $conn): void
+{
+    $conn->exec("
+        ALTER TABLE `msz_users`
+            DROP COLUMN `user_ninswitch`;
+    ");
+}
diff --git a/src/Users/profile.php b/src/Users/profile.php
index ab38b769..fe27abbb 100644
--- a/src/Users/profile.php
+++ b/src/Users/profile.php
@@ -46,6 +46,11 @@ define('MSZ_USER_PROFILE_FIELDS', [
         'regex' => '#^(?:https?://(?:www.)?steamcommunity.com/(?:id|profiles)/)?([a-zA-Z0-9_-]{2,100})/?$#u',
         'link' => 'https://steamcommunity.com/id/%s',
     ],
+    'ninswitch' => [
+        'name' => 'Nintendo Switch',
+        'regex' => '#^(?:SW-)?([0-9]{4}-[0-9]{4}-[0-9]{4})$#u',
+        'format' => 'SW-%s',
+    ],
     'twitchtv' => [
         'name' => 'Twitch.tv',
         'regex' => '#^(?:https?://(?:www.)?twitch.tv/)?([0-9A-Za-z_]{3,25})/?$#u',