Might be wrong on this one, but adding a resistor in parallel should work but the caveat being that the response of the pot will change (ie if the pot is linear you'll get a log or rev-log response curve), which might make it harder to nail the sweet spot, but should do as a temporary fix.
In fact while you are trying that out, it might be worth trying with a 2k2 in parallel as many people like having a 2k pot instead of 1k to control the fuzz level on FF-type circuits... You never know!