[tor-onions] tor 04.2.5 Dos help

How do I configure my hidden service to use the latest Dos defense in tor 0.4.2.5. In my tor/torrc file underneath my hiddenservice info I added HiddenServiceEnableIntroDoSDefense 1 HiddenServiceEnableIntroDoSRatePerSec 25 HiddenServiceEnableIntroDoSBurstPerSec 200 and tried to reload tor which failed, I then tried remvoving the numbers from the end and still failed. What am I doing wrong?