rndc: unsupported algorithm:

[Markus Feldmann]

Hi All,

i tried to reload my config and zones with rndc. My Bind version is BIND 
9.5.1-P3. My rndc.key looks like this.
key feld-server.feldland.lan. {
	algorithm HMAC-MD5.SIG-ALG.REG.INT;
	secret TNCrihQV8NjY6bzA5GMJIg==;
};

This is what i also got from creating the sig-key. I still included this 
key into my named.conf and into dhcpd.conf.

But i get this message.
rndc: unsupported algorithm: HMAC-MD5.SIG-ALG.REG.INT

What is the Problem?

regards Markus