--- ../work/decompile-8eb82bde//net/minecraft/server/TileEntityCommandListener.java	2014-11-28 11:22:56.214823157 +0000
+++ src/main/java/net/minecraft/server/TileEntityCommandListener.java	2014-11-28 11:01:54.000000000 +0000
@@ -6,6 +6,7 @@
 
     TileEntityCommandListener(TileEntityCommand tileentitycommand) {
         this.a = tileentitycommand;
+        sender = new org.bukkit.craftbukkit.command.CraftBlockCommandSender(this); // CraftBukkit - add sender
     }
 
     public BlockPosition getChunkCoordinates() {