Debian apt-get update error from GPG

Been having problems using "apt-get update" recently?

Fetched 4025kB in 27s (146kB/s)
Reading package lists... Done
W: There are no public key available for the following key IDs:
W: You may want to run apt-get update to correct these problems

Look familiar?

Easy fix:
# wget http://ftp-master.debian.org/ziyi_key_2006.asc
# /usr/bin/apt-key add ziyi_key_2006.asc

I had this problem, Google'd it, found it here: @linuxgazette

Thanks Slaanesh and LG for the fix.