diff --git a/tests/mkfs-tests/001-basic-profiles/test.sh b/tests/mkfs-tests/001-basic-profiles/test.sh
index 0861f36f..2747d429 100755
--- a/tests/mkfs-tests/001-basic-profiles/test.sh
+++ b/tests/mkfs-tests/001-basic-profiles/test.sh
@@ -70,6 +70,8 @@ test_mkfs_single
 test_mkfs_single  -d  single  -m  single
 test_mkfs_single  -d  single  -m  single  --mixed
 test_mkfs_single  -d  single  -m  dup
+test_mkfs_single  -d  dup     -m  single
+test_mkfs_single  -d  dup     -m  dup
 test_mkfs_single  -d  dup     -m  dup     --mixed
 
 test_mkfs_multi