minor subtraction from #43
minor subtraction from #43

fixed issue as pointed out by @Aaron1011
YanjieGao/osrc,dfm/osrc,errietta/osrc,pombredanne/osrc,YanjieGao/osrc,jrmerz/osrc,dfm/osrc,jrmerz/osrc,errietta/osrc,errietta/osrc,YanjieGao/osrc,jrmerz/osrc,dfm/osrc