diff --git a/bootstrap.sh b/bootstrap.sh
index 16b7eec..d5b5ca1 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -12,7 +12,10 @@ apt-get install debootstrap -q -y
 
 rootfs=/devuan/rootfs
 
-debootstrap --variant=minbase jessie $rootfs
+debootstrap \
+    --force-check-gpg \
+    --no-merged-usr \
+    --variant=minbase jessie $rootfs
 
 bindir=usr/local/bin
 cp -a scripts/* $rootfs/$bindir