diff --git a/lib/http.js b/lib/http.js
index 06d98d0b976..4c55db0c8c4 100644
--- a/lib/http.js
+++ b/lib/http.js
@@ -1335,13 +1335,13 @@ ClientRequest.prototype.setTimeout = function(msecs, callback) {
   }
 
   if (this.socket) {
-    this.socket.on('connect', function() {
+    this.socket.once('connect', function() {
       this.setTimeout(msecs, emitTimeout);
     });
     return;
   }
 
-  this.on('socket', function(sock) {
+  this.once('socket', function(sock) {
     this.setTimeout(msecs, emitTimeout);
   });
 };