diff --git a/lib/_debug_agent.js b/lib/_debug_agent.js
index 63c50357894b08..cb397bcb8011fa 100644
--- a/lib/_debug_agent.js
+++ b/lib/_debug_agent.js
@@ -7,7 +7,12 @@ const Buffer = require('buffer').Buffer;
 const Transform = require('stream').Transform;
 
 exports.start = function start() {
-  var agent = new Agent();
+  const agent = new Agent();
+
+  // SmartOS sometimes munges output from `process._rawDebug()`
+  // but Windows can't use `console.error()`.
+  // https://github.com/nodejs/node/issues/2476
+  const log = process.platform === 'win32' ? process._rawDebug : console.error;
 
   // Do not let `agent.listen()` request listening from cluster master
   const cluster = require('cluster');
@@ -15,12 +20,12 @@ exports.start = function start() {
   cluster.isMaster = true;
 
   agent.on('error', function(err) {
-    process._rawDebug(err.stack || err);
+    log(err.stack || err);
   });
 
   agent.listen(process._debugAPI.port, function() {
-    var addr = this.address();
-    process._rawDebug('Debugger listening on port %d', addr.port);
+    const addr = this.address();
+    log(`Debugger listening on port ${addr.port}`);
     process._debugAPI.notifyListen();
   });
 
diff --git a/test/parallel/parallel.status b/test/parallel/parallel.status
index 69a154730658d2..9334614d5626d8 100644
--- a/test/parallel/parallel.status
+++ b/test/parallel/parallel.status
@@ -18,7 +18,6 @@ test-child-process-exit-code      : PASS,FLAKY
 [$system==macos]
 
 [$system==solaris] # Also applies to SmartOS
-test-debug-signal-cluster         : PASS,FLAKY
 
 [$system==freebsd]
 test-net-socket-local-address     : PASS,FLAKY