diff --git a/install/tools/5-database.php b/install/tools/5-database.php
index 6406ee48..1e5f24ae 100644
--- a/install/tools/5-database.php
+++ b/install/tools/5-database.php
@@ -98,6 +98,11 @@ if(!$db->hasColumn('accounts', 'web_flags')) {
 		success($locale['step_database_adding_field'] . ' accounts.web_flags...');
 }
 
+if(!$db->hasColumn('accounts', '2fa_type')) {
+	if(query("ALTER TABLE `accounts` ADD `2fa_type` tinyint NOT NULL DEFAULT 0 AFTER `web_flags`;"))
+		success($locale['step_database_adding_field'] . ' accounts.2fa_type...');
+}
+
 if(!$db->hasColumn('accounts', 'email_verified')) {
 	if(query("ALTER TABLE `accounts` ADD `email_verified` TINYINT(1) NOT NULL DEFAULT 0 AFTER `web_flags`;"))
 		success($locale['step_database_adding_field'] . ' accounts.email_verified...');
diff --git a/system/migrations/50.php b/system/migrations/50.php
new file mode 100644
index 00000000..112dddda
--- /dev/null
+++ b/system/migrations/50.php
@@ -0,0 +1,28 @@
+<?php
+// 2fa
+// add the myaac_account_email_codes
+
+/**
+ * @var OTS_DB_MySQL $db
+ */
+
+$up = function () use ($db) {
+	if (!$db->hasColumn('accounts', '2fa_type')) {
+		$db->addColumn('accounts', '2fa_type', "tinyint NOT NULL DEFAULT 0 AFTER `web_flags`");
+	}
+
+	// add myaac_account_email_codes table
+	if (!$db->hasTable(TABLE_PREFIX . 'account_email_codes')) {
+		$db->exec(file_get_contents(__DIR__ . '/46-account_email_codes.sql'));
+	}
+};
+
+$down = function () use ($db) {
+	if ($db->hasColumn('accounts', '2fa_type')) {
+		$db->dropColumn('accounts', '2fa_type');
+	}
+
+	if ($db->hasTable(TABLE_PREFIX . 'account_email_codes')) {
+		$db->dropTable(TABLE_PREFIX . 'account_email_codes');
+	}
+};