diff --git a/index.js b/index.js
index aa3ca1e..a672fb3 100644
--- a/index.js
+++ b/index.js
@@ -112,12 +112,23 @@ var asynchronizers = [
 ];
 if (global.setImmediate) asynchronizers.push('setImmediate');
 
+var timers = require('timers');
+var patchGlobalTimers = global.setTimeout === timers.setTimeout;
+
 massWrap(
-  require('timers'),
+  timers,
   asynchronizers,
   activatorFirst
 );
 
+if (patchGlobalTimers) {
+  massWrap(
+    global,
+    asynchronizers,
+    activatorFirst
+  );
+}
+
 var dns = require('dns');
 massWrap(
   dns,