diff --git a/test/parallel/test-crypto-authenticated.js b/test/parallel/test-crypto-authenticated.js
index df6b4316390594..9dd5e76de99c5b 100644
--- a/test/parallel/test-crypto-authenticated.js
+++ b/test/parallel/test-crypto-authenticated.js
@@ -391,7 +391,7 @@ for (const i in TEST_CASES) {
       assert.strictEqual(msg, test.plain);
     } else {
       // assert that final throws if input data could not be verified!
-      assert.throws(function() { decrypt.final('ascii'); }, errMessages.auth);
+      assert.throws(function() { decrypt.final('hex'); }, errMessages.auth);
     }
   }