diff --git a/testing/scripts/build-baseimage b/testing/scripts/build-baseimage
index d9500cb35..e410f6a37 100755
--- a/testing/scripts/build-baseimage
+++ b/testing/scripts/build-baseimage
@@ -45,7 +45,7 @@ execute "qemu-nbd -c $NBDEV $BASEIMG"
 do_on_exit qemu-nbd -d $NBDEV
 
 log_action "Partitioning disk"
-sfdisk /dev/nbd0 -D -uM >>$LOGFILE 2>&1 << EOF
+sfdisk /dev/nbd0 >>$LOGFILE 2>&1 << EOF
 ;
 EOF
 if [ $? != 0 ]