Solved Can't seem to set the RCON Password

I keep getting hit with the same error: Stopping rustserver: Default RCON Password detected!

It's not breaking anything, but I don't exactly want the default password on my server. The thing I expected to work was adding:

rcon.password "somenewpassword"

to the file:

/home/steam/serverfiles/server/rustserver/cfg/server.cfg

I'm running on Debian, fresh install with no fancy plugins (minus the fix here: Solved - Couldn't open /RustDedicated_Data/Plugins/x86_64/libRakNet.so | Page 2 | Oxide but I was having this issue prior to making that change, so I believe it's probably unrelated).

Am I looking in the wrong place for where to set this password? Am I maybe adding the wrong line to the config file? It seems like ~/rustServer start is just completely ignoring the config file, but I don't see any guidance on where the right config file would be