diff --git a/kernel.spec.in b/kernel.spec.in
index 5d27c3e7..3fa42893 100644
--- a/kernel.spec.in
+++ b/kernel.spec.in
@@ -58,6 +58,7 @@ AutoReqProv:    on
 BuildRequires:  coreutils module-init-tools sparse
 BuildRequires:  qubes-kernel-vm-support
 BuildRequires:  dracut
+BuildRequires:  busybox
 BuildRequires:  bc
 BuildRequires:  openssl
 BuildRequires:  openssl-devel
@@ -473,9 +474,10 @@ mv  %buildroot/lib/firmware-all %buildroot/lib/firmware/%kernelrelease
 
 # Prepare initramfs for Qubes VM
 mkdir -p %buildroot/%vm_install_dir
-PATH="/sbin:$PATH" dracut --nomdadmconf --nolvmconf \
+PATH="/sbin:$PATH" dracut --nomdadmconf --nolvmconf --no-hostonly \
     --kmoddir %buildroot/lib/modules/%kernelrelease \
-    --modules "kernel-modules qubes-vm-simple" \
+    --modules "kernel-modules qubes-vm-simple busybox" \
+    --omit "nss-softokn extra-modules qubes-pciback qubes-udev" \
     --conf /dev/null --confdir /var/empty \
     -d "xenblk xen-blkfront cdrom ext4 jbd2 crc16 dm_snapshot" \
     %buildroot/%vm_install_dir/initramfs %kernelrelease