EXTRAVERSION problem with nvidia kernel module

[Olle Eriksson <pt00oer@student.bth.se>]

I am using Sid and I just compiled and installed the 2.6.0 kernel from
the source package. I am using the Debian way and added
--append_to_version -040207 to the call to make-kpkg. The problem is
when I am trying to install the nvidia binary kernel module (ver 5336).
I compiled modules_image while running the 2.6 kernel and used
--append-to-versionn -040207 here too. Everything is fine except I am
unable to load the module (module-init-tools is installed BTW).
/var/log/syslog gives me this:

modprobe: FATAL: Error inserting nvidia
(/lib/modules/2.6.0-040207/nvidia/nvidia.ko): Invalid module format
kernel: nvidia: version magic '2.6.0 PENTIUMIII gcc-3.3' should be
'2.6.0-040207 PENTIUMIII gcc-3.3'

modprobe -f nvidia works, but I don't want to do that every time. Is
there any solution to the problem with EXTRAVERSION or can I force
nvidia to be loaded automatically somehow?

Thanks
Olle Eriksson