diff --git a/lib/internal/crypto/argon2.js b/lib/internal/crypto/argon2.js
index 1d2b8b7cac91e9..e8f691d7ea9587 100644
--- a/lib/internal/crypto/argon2.js
+++ b/lib/internal/crypto/argon2.js
@@ -151,8 +151,6 @@ function check(algorithm, parameters) {
     case 'argon2id':
       type = kTypeArgon2id;
       break;
-    default:  // unreachable
-      throw new ERR_CRYPTO_ARGON2_NOT_SUPPORTED();
   }
 
   validateObject(parameters, 'parameters');