added const (i believe it fixed a compile warning on OSX)
added const (i believe it fixed a compile warning on OSX)

seanisom/vtp,seanisom/vtp,markraz/vtp,markraz/vtp,nakijun/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,nakijun/vtp,markraz/vtp,nakijun/vtp,seanisom/vtp,seanisom/vtp,markraz/vtp,nakijun/vtp