diff --git a/tests/mkfs-tests/008-secorsize-nodesize-combination/test.sh b/tests/mkfs-tests/008-secorsize-nodesize-combination/test.sh
index 151e7b77..955cd2b1 100755
--- a/tests/mkfs-tests/008-secorsize-nodesize-combination/test.sh
+++ b/tests/mkfs-tests/008-secorsize-nodesize-combination/test.sh
@@ -19,7 +19,7 @@ do_test()
 {
 	sectorsize=$1
 	nodesize=$2
-	run_mayfail $TOP/mkfs.btrfs -O $features -n $nodesize -s $sectorsize \
+	run_mayfail $TOP/mkfs.btrfs -f -O $features -n $nodesize -s $sectorsize \
 		$TEST_DEV
 	ret=$?
 	if [ $ret == 0 ]; then