Disable Siri Home Button Activation?

I was wondering if there was a way to disable the default "hold home button" siri activation method? I would like to use the hold home button in activator for another purpose but I always find myself accidentally activating siri as well. I know I could disable siri altogether but I still want to be able to use it, just not through the button hold (I always put it up to my face to activate it anyways).