Changed my jump to input manager - Now I jump way higher?

I have a script that checks for spacebar key down to jump. Now that I’ve switched to the input manager (rather than directly checking spacebar), the jump key still works, but it jumps WAYYYY higher. Any idea why that is?

Before Change:

if (grounded && Input.GetKeyDown (KeyCode.Space)) { 
			anim.SetBool ("Ground", false);
			GetComponent<Rigidbody2D>().AddForce(new Vector2(0, jumpForce));
		}

After change:

if (grounded && Input.GetButton ("Jump")) { 
			anim.SetBool ("Ground", false);
			GetComponent<Rigidbody2D>().AddForce(new Vector2(0, jumpForce));
		}

Input.GetButton (KeyCode.Space)
This line should cause an error
GetButton() method only takes a string parameter, GetKey() method only takes a parameter of type KeyCode enum.

I think I figured it out. I was using GetKeyDown previously, not GetKey. It’s probably adding a lot more force than it used to be with the old code because it is still applying the force while I hold the key down. Will test it out when I get home.