diff --git a/test/parallel/test-runner-output.mjs b/test/parallel/test-runner-output.mjs
index 8eb622be35c313..4e04a71193e78a 100644
--- a/test/parallel/test-runner-output.mjs
+++ b/test/parallel/test-runner-output.mjs
@@ -37,7 +37,7 @@ function replaceJunitDuration(str) {
   return str
     .replaceAll(/time="[0-9.]+"/g, 'time="*"')
     .replaceAll(/duration_ms [0-9.]+/g, 'duration_ms *')
-    .replaceAll(hostname(), 'HOSTNAME')
+    .replaceAll(`hostname="${hostname()}"`, 'hostname="HOSTNAME"')
     .replace(stackTraceBasePath, '$3');
 }