InfluxDB Docker container and collectd listener

Hello,
I am trying to enable collectd in my influxdb container. I changed the relevant settings in the configuration file but it doesn’t seem to be listening on port 25826 as expected. If I inspect the container I only see it listening on 8086. Telnet to 25826 does not work.

[[collectd]]
   enabled = true
   bind-address = ":25826"
   database = "cdata"
   retention-policy = ""
  #
  # The collectd service supports either scanning a directory for multiple types
  # db files, or specifying a single db file.
   typesdb = "/usr/local/share/collectd"

How do I fix this?