diff --git a/doc/api/async_hooks.md b/doc/api/async_hooks.md
index 8a9835626b4095..8080e628617bde 100644
--- a/doc/api/async_hooks.md
+++ b/doc/api/async_hooks.md
@@ -273,7 +273,8 @@ async_hooks.createHook({
   init(asyncId, type, triggerAsyncId) {
     const eid = async_hooks.executionAsyncId();
     fs.writeSync(
-      1, `${type}(${asyncId}): trigger: ${triggerAsyncId} execution: ${eid}\n`);
+      process.stdout.fd,
+      `${type}(${asyncId}): trigger: ${triggerAsyncId} execution: ${eid}\n`);
   }
 }).enable();
 
@@ -330,7 +331,7 @@ async_hooks.createHook({
     const eid = async_hooks.executionAsyncId();
     const indentStr = ' '.repeat(indent);
     fs.writeSync(
-      1,
+      process.stdout.fd,
       `${indentStr}${type}(${asyncId}):` +
       ` trigger: ${triggerAsyncId} execution: ${eid}\n`);
   },