diff --git a/lib/Protocol/Helper.js b/lib/Protocol/Helper.js
index a383a0e..f25aa91 100644
--- a/lib/Protocol/Helper.js
+++ b/lib/Protocol/Helper.js
@@ -8,7 +8,7 @@ define(["Protocol/Parser"], function(Parser) {
 
 	Helper.assemble = function(command, options){
 		var commands = {};
-		commands[command] = options;
+		commands[command] = options || null;
 		return commands;
 	}