diff --git a/lib/internal/cluster/master.js b/lib/internal/cluster/master.js
index af421a04183ae8..b20a27c5ee5129 100644
--- a/lib/internal/cluster/master.js
+++ b/lib/internal/cluster/master.js
@@ -70,18 +70,8 @@ cluster.setupMaster = function(options) {
   assert(schedulingPolicy === SCHED_NONE || schedulingPolicy === SCHED_RR,
          `Bad cluster.schedulingPolicy: ${schedulingPolicy}`);
 
-  const hasDebugArg = process.execArgv.some((argv) => {
-    return /^(--debug|--debug-brk)(=\d+)?$/.test(argv);
-  });
-
   process.nextTick(setupSettingsNT, settings);
 
-  // Send debug signal only if not started in debug mode, this helps a lot
-  // on windows, because RegisterDebugHandler is not called when node starts
-  // with --debug.* arg.
-  if (hasDebugArg)
-    return;
-
   process.on('internalMessage', (message) => {
     if (message.cmd !== 'NODE_DEBUG_ENABLED')
       return;