How can i stop my Third person character from crouching from a weapon i placed in his hand?

So basically i want to test out weapons with my character so i did a makeshift club with unity 3d object and implemented collision and everything for the club to work, problem is, my character controller script recognizes my "club weapon" as something of the environment and makes him crouch every time his hand moves and the weapon goes above his head, how can i salve this?