diff --git a/test/parallel/test-stream-writable-change-default-encoding.js b/test/parallel/test-stream-writable-change-default-encoding.js
index 837ff217522..f6da1d301d6 100644
--- a/test/parallel/test-stream-writable-change-default-encoding.js
+++ b/test/parallel/test-stream-writable-change-default-encoding.js
@@ -61,7 +61,7 @@ assert.throws(function changeDefaultEncodingToInvalidValue() {
   m.setDefaultEncoding({});
   m.write('bar');
   m.end();
-}, TypeError);
+}, /^TypeError: Unknown encoding: \[object Object\]$/);
 
 (function checkVairableCaseEncoding() {
   const m = new MyWritable(function(isBuffer, type, enc) {