How does this tiny piece fit back into the control switch?

Not knowing the play/pause/volume control was part of the earphone wiring and therefore not noticing that it was stuck to the packaging tape, the control's casing came apart when I took the tape off the packaging. A tiny strip of metal fell out and it seems to control the volume. (I was able to easily snap the 2 halves of the casing back together and the center button that forwards, etc still works)The very thin strip of metal is a little less in length than the inside of the control and about half the width, with one piece of metal about 1/16" square on each long side bent at a 90% angle. I suspect it fits inside the control switch somehow. Can I fix it myself? Is there a picture available of the inside of this switch?