[Libguestfs] debian binaries using qemu

Hi, I am using the libguestfs-1.11.0-1 binaries posted here: http://libguestfs.org/download/binaries/debian-packages/ on a Sid system. When I use libguestfs, I can see that an instance of QEMU is starting up using the binary @ /usr/bin/qemu-system-x86_64 I have KVM installed on the system at /usr/bin/kvm -- how do I ensure that KVM gets used by libguestfs instead of qemu? I guess I can always replace the qemu binary with a symlink to the kvm binary, but that seems like a hack... --Igor