dhcp-server configuration XML configuration not supported although generated?

I've just installed a system and used autoyast to create a reference profile. The installed ystem has the dhcp server enabled. The reference profile contains a: <dhcp-server> . . . </dhcp-server> block. xmllint -dtdvalid /usr/share/autoinstall/dtd/profile.dtd x.xml blows up on this block. Inspection of the DTD suggests this element is undefined. This means autoyast will probably blow up when it tries to use this xml file to autoload a system. Is this a problem? How can I validate the generated xml? Will autoyast be able to handle dhcp-server blocks? advice appreciated.