diff --git a/lib/connection.js b/lib/connection.js
index 3728bb59..6ef5d6bc 100644
--- a/lib/connection.js
+++ b/lib/connection.js
@@ -349,7 +349,7 @@ Connection.prototype.socketDrained = function(socket, serviceBuffer) {
 	socket.busy = false;
 	if(this.options.enhanced) {
 		var notification = socket.cachedNotifications[socket.cachedNotifications.length - 1];
-		this.emit('transmitted', notification.notification, notification.recipient, socket);
+		this.emit('transmitted', notification.notification, notification.recipient);
 	}
 	if(serviceBuffer === true && !this.runningOnNextTick) {
 		// There is a possibility that this could add multiple invocations to the