diff --git a/lib/tls.js b/lib/tls.js
index f8122c7f51..d194d8b8bc 100644
--- a/lib/tls.js
+++ b/lib/tls.js
@@ -177,7 +177,7 @@ CryptoStream.prototype.setNoDelay = function(noDelay) {
 
 
 CryptoStream.prototype.setKeepAlive = function(enable, initialDelay) {
-  if (this.socket) this.socket.setNoDelay(enable, initialDelay);
+  if (this.socket) this.socket.setKeepAlive(enable, initialDelay);
 };