diff --git a/libguestfs.mkinitrd.boot.sh b/libguestfs.mkinitrd.boot.sh
index c0202eb..025f361 100644
--- a/libguestfs.mkinitrd.boot.sh
+++ b/libguestfs.mkinitrd.boot.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 #%stage: block
 #%modules: dm-mod virtio_blk virtio_console virtio_net virtio_pci virtio_scsi
-#%programs: guestfsd lvm mdadm lsmod ip date cat parted
+#%programs: guestfsd lvm mdadm lsmod ip date cat parted blockdev
 #
 
 # from libguestfs-1.19.34/appliance/init:
diff --git a/libguestfs.spec b/libguestfs.spec
index 47043d7..6cb37cf 100644
--- a/libguestfs.spec
+++ b/libguestfs.spec
@@ -64,6 +64,7 @@ BuildRequires:  parted
 BuildRequires:  pcre-devel
 BuildRequires:  pkg-config
 BuildRequires:  readline-devel
+BuildRequires:  util-linux
 %if %suse_version < 1210
 # perl as included in openSuSE 11.4 has this, but an older version without html_charset
 # Without the version the requires is ignored for some reason