diff --git a/lib/net.js b/lib/net.js
index d4a40fe07a8..4c5e62b58c0 100644
--- a/lib/net.js
+++ b/lib/net.js
@@ -941,7 +941,7 @@ function lookupAndConnect(self, options) {
     dnsopts.hints = dns.ADDRCONFIG | dns.V4MAPPED;
 
   debug('connect: find host ' + host);
-  debug('connect: dns options ' + dnsopts);
+  debug('connect: dns options', dnsopts);
   self._host = host;
   var lookup = options.lookup || dns.lookup;
   lookup(host, dnsopts, function(err, ip, addressType) {