diff --git a/test/parallel/test-string-decoder.js b/test/parallel/test-string-decoder.js
index fafb4f700fe2ed..f1b11477008a7f 100644
--- a/test/parallel/test-string-decoder.js
+++ b/test/parallel/test-string-decoder.js
@@ -165,7 +165,7 @@ function test(encoding, input, expected, singleSequence) {
     if (output !== expected) {
       const message =
         `Expected "${unicodeEscape(expected)}", ` +
-        `but got "${unicodeEscape(output)}"\n ` +
+        `but got "${unicodeEscape(output)}"\n` +
         `input: ${input.toString('hex').match(hexNumberRE)}\n` +
         `Write sequence: ${JSON.stringify(sequence)}\n` +
         `Full Decoder State: ${inspect(decoder)}`;