diff --git a/lib/events.js b/lib/events.js
index 34fc841b55e2af..efe7bd3691c6bd 100644
--- a/lib/events.js
+++ b/lib/events.js
@@ -342,11 +342,11 @@ EventEmitter.prototype.emit = function emit(type, ...args) {
     let er;
     if (args.length > 0)
       er = args[0];
-    if (domain !== null && domain !== undefined) {
+    if (domain) {
       if (!er) {
         er = new ERR_UNHANDLED_ERROR();
       }
-      if (typeof er === 'object' && er !== null) {
+      if (typeof er === 'object') {
         er.domainEmitter = this;
         er.domain = domain;
         er.domainThrown = false;