Change chronograf to use different port

Hello all, im new to TICK stack, im currently trying to run TICK on Centos and im having an issue running Chronograf.

Chronograf Version 1.4.3.1

The issue im having is i have a port already using :8888, so i changed my “Chronograf config” /usr/lib/systemd/system/chronograf.service to listen on 8889 " Environment=‘PORT=8889’ " instead and also changed the init.sh as well, i then restarted the service.

This is the error im getting when i try running chronograf.

ERRO[0000] listen tcp 0.0.0.0:8888: bind: address already in use component=server
yyyy/mm/dd hh:mm:ss listen tcp 0.0.0.0:8888: bind: address already in use

Which is what i was trying to resolve, am i missing something.

Thanks in advance.