diff --git a/lib/events.js b/lib/events.js
index 69af3aee60..443de4b20a 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -22,6 +22,8 @@
 var isArray = Array.isArray;
 var domain;
 
+exports.usingDomains = false;
+
 function EventEmitter() {
   this.domain = null;
   if (exports.usingDomains) {