1 files changed, 4 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 667a1f90d..3bc52a8a3 100644
--- a/Makefile
+++ b/Makefile
@@ -35,12 +35,15 @@ gitignore:
 
 build-stamp: libfido2/install-stamp dh-runit/install-stamp
 
+BB_TOOL = apt-get -o Debug::pkgProblemResolver=yes --no-install-recommends -t buster-backports
+
 build-stamp: pkgs=$(package_files)
 libfido2/build-stamp: pkgs=$(fido_package_files)
+libfido2/build-stamp: mbd_tool="-t $(BB_TOOL)"
 dh-runit/build-stamp: pkgs=$(dh_runit_package_files)
 
 build-stamp libfido2/build-stamp dh-runit/build-stamp:
-        cd $(dir $@) && mk-build-deps ./debian/control --install --root-cmd sudo --remove || true
+        cd $(dir $@) && mk-build-deps $(mbd_tool) ./debian/control --install --root-cmd sudo --remove || true
         cd $(dir $@) && dpkg-buildpackage -us -uc -nc
         for pkg in $(pkgs); do [ -e "$$pkg" ] || exit; done
         touch $@