diff --git a/test/fixtures/loop.js b/test/fixtures/loop.js
index e91b831d01b816..461fb393583e68 100644
--- a/test/fixtures/loop.js
+++ b/test/fixtures/loop.js
@@ -4,7 +4,7 @@ console.log('A message', 5);
 while (t > 0) {
   if (t++ === 1000) {
     t = 0;
-    console.log('Outputed message #' + k++);
+    console.log(`Outputed message #${k++}`);
   }
 }
 process.exit(55);