diff --git a/drivers/artnet.js b/drivers/artnet.js
index 17b32c5..c7bf683 100644
--- a/drivers/artnet.js
+++ b/drivers/artnet.js
@@ -6,15 +6,18 @@ function EnttecODE(device_id, options) {
 	var self = this
 
 	self.header = new Buffer([65, 114, 116, 45, 78, 101, 116, 0, 0, 80, 0, 14])
-	self.sequence = self.physical = new Buffer([0])
-	self.length = new Buffer([0x02,0x00])
+	self.sequence    = new Buffer([0])
+	self.physical    = new Buffer([0])
+	self.universe_id = new Buffer([0x00, 0x00])
+	self.length      = new Buffer([0x02, 0x00])
 
-	this.universe = new Buffer(512)
-	this.universe.fill(0)
+	self.universe = new Buffer(512)
+	self.universe.fill(0)
 
 	self.sleepTime = 24
 
 	options = options || {}
+	self.universe_id.writeInt16BE(options.universe || 0, 0)
 	self.host = device_id || '127.0.0.1'
 	self.port = options.port || 6454
 	self.dev = dgram.createSocket('udp4')
@@ -26,6 +29,7 @@ EnttecODE.prototype.send_universe = function() {
 		this.header,
 		this.sequence,
 		this.physical,
+		this.universe_id,
 		this.length,
 		this.universe
 	])