diff --git a/tests/fsck-tests/012-leaf-corruption/test.sh b/tests/fsck-tests/012-leaf-corruption/test.sh
index 98e31856..f8701ad7 100755
--- a/tests/fsck-tests/012-leaf-corruption/test.sh
+++ b/tests/fsck-tests/012-leaf-corruption/test.sh
@@ -86,7 +86,7 @@ check_leaf_corrupt_no_data_ext()
 {
 	image=$1
 	mkdir -p $TEST_MNT || _fail "failed to create mount point"
-	$SUDO_HELPER mount $image -o ro $TEST_MNT
+	$SUDO_HELPER mount -o loop $image -o ro $TEST_MNT
 
 	i=0
 	while [ $i -lt ${#leaf_no_data_ext_list[@]} ]; do