diff --git a/lib/_http_outgoing.js b/lib/_http_outgoing.js
index e3a032ad21273b..c8a393ddcf31b4 100644
--- a/lib/_http_outgoing.js
+++ b/lib/_http_outgoing.js
@@ -775,7 +775,8 @@ OutgoingMessage.prototype.end = function end(chunk, encoding, callback) {
     encoding = null;
   }
 
-  if (this.socket) {
+  // Not finished, socket exists and data will be written (chunk or header)
+  if (this.socket && !this.finished && (chunk || !this._header)) {
     this.socket.cork();
   }