fix ruby 1.8.7
fix ruby 1.8.7

t3hpr1m3/typhoeus,nevans/typhoeus,telekomatrix/typhoeus,sportngin/typhoeus,tinfoil/typhoeus,tompscanlan/typhoeus,typhoeus/typhoeus,PericlesTheo/typhoeus,EddyLuten/typhoeus,pravi/typhoeus,bitgal/typhoeus,wcmonty/typhoeus,nju520/typhoeus,kkirsche/typhoeus,AvnerCohen/typhoeus