diff --git a/lib/child_process.js b/lib/child_process.js
index 5b0c3f318bc..215da0bebd3 100644
--- a/lib/child_process.js
+++ b/lib/child_process.js
@@ -313,7 +313,8 @@ function setupChannel(target, channel) {
     var obj = handleConversion[message.type];
 
     // Update simultaneous accepts on Windows
-    if (obj.simultaneousAccepts) {
+    if (process.platform === 'win32') {
+      handle._simultaneousAccepts = false;
       net._setSimultaneousAccepts(handle);
     }