diff --git a/rootfs/post-build.sh b/rootfs/post-build.sh
index c372ca7..9f7dfae 100755
--- a/rootfs/post-build.sh
+++ b/rootfs/post-build.sh
@@ -2,3 +2,5 @@
 
 cp -puv "${BUILD_DIR}"/nbd-*/systemd/nbd@.service \
     "${TARGET_DIR}"/usr/lib/systemd/system/
+
+touch "${TARGET_DIR}"/usr/lib/clock-epoch