1 files changed, 7 insertions, 0 deletions
diff --git a/lib/internal/process/stdio.js b/lib/internal/process/stdio.js
index eaba4dfca1..76e6ab8514 100644
--- a/lib/internal/process/stdio.js
+++ b/lib/internal/process/stdio.js
@@ -6,6 +6,7 @@ const {
   ERR_UNKNOWN_STDIN_TYPE,
   ERR_UNKNOWN_STREAM_TYPE
 } = require('internal/errors').codes;
+const { isMainThread } = require('internal/worker');
 
 exports.setup = setupStdio;
 
@@ -16,6 +17,8 @@ function setupStdio() {
 
   function getStdout() {
     if (stdout) return stdout;
+    if (!isMainThread)
+      return new (require('stream').Writable)({ write(b, e, cb) { cb(); } });
     stdout = createWritableStdioStream(1);
     stdout.destroySoon = stdout.destroy;
     stdout._destroy = function(er, cb) {
@@ -31,6 +34,8 @@ function setupStdio() {
 
   function getStderr() {
     if (stderr) return stderr;
+    if (!isMainThread)
+      return new (require('stream').Writable)({ write(b, e, cb) { cb(); } });
     stderr = createWritableStdioStream(2);
     stderr.destroySoon = stderr.destroy;
     stderr._destroy = function(er, cb) {
@@ -46,6 +51,8 @@ function setupStdio() {
 
   function getStdin() {
     if (stdin) return stdin;
+    if (!isMainThread)
+      return new (require('stream').Readable)({ read() { this.push(null); } });
 
     const tty_wrap = process.binding('tty_wrap');
     const fd = 0;