diff --git a/src/handlers/identity.ts b/src/handlers/identity.ts
index edccfa6..c37d0b5 100644
--- a/src/handlers/identity.ts
+++ b/src/handlers/identity.ts
@@ -27,8 +27,8 @@ function resolveTotpSecret(userSecret: string | null, envSecret: string | undefi
 
 function twoFactorRequiredResponse(message: string = 'Two factor required.', includeRecoveryCode: boolean = false): Response {
   const providers = includeRecoveryCode
-    ? [String(TWO_FACTOR_PROVIDER_AUTHENTICATOR), String(TWO_FACTOR_PROVIDER_RECOVERY_CODE)]
-    : [String(TWO_FACTOR_PROVIDER_AUTHENTICATOR)];
+    ? [TWO_FACTOR_PROVIDER_AUTHENTICATOR, TWO_FACTOR_PROVIDER_RECOVERY_CODE]
+    : [TWO_FACTOR_PROVIDER_AUTHENTICATOR];
   const providers2: Record<string, null> = {};
   for (const provider of providers) providers2[provider] = null;