diff --git a/sh/fs.sh b/sh/fs.sh
index fa0657f..95965e2 100644
--- a/sh/fs.sh
+++ b/sh/fs.sh
@@ -1,4 +1,4 @@
-fs_make_btrfs() {
+sh_fs_make_btrfs() {
 	local device="${1}"
 	local label="${2}"
 	local uuid="${3}"
diff --git a/sh/rescue/hetzner.sh b/sh/rescue/hetzner.sh
index b541b26..36dc2ea 100644
--- a/sh/rescue/hetzner.sh
+++ b/sh/rescue/hetzner.sh
@@ -67,7 +67,7 @@ rescue_wipe_0_init_hetzner_8_8() {
 	sh_fs_raid_create \
 		"boot" "00000000:00000000:00000000:00000002" ${members}
 	#
-	fs_make_btrfs "/dev/md/boot" "boot" \
+	sh_fs_make_btrfs "/dev/md/boot" "boot" \
 		"00000000-0000-0000-0000-00000000000b"
 	# mount boot
 	mkdir --parents "/media/boot"
@@ -114,7 +114,7 @@ rescue_wipe_2_make_hetzner_8_8() {
 	# passphrase
 	unset passphrase
 	# format crypt
-	fs_make_btrfs "/dev/mapper/crypt" "crypt" \
+	sh_fs_make_btrfs "/dev/mapper/crypt" "crypt" \
 		"00000000-0000-0000-0000-00000000000c"
 	# mount crypt
 	mkdir --parents "/media/crypt"
diff --git a/sh/rescue/ovh.sh b/sh/rescue/ovh.sh
index 3127564..4a54f64 100644
--- a/sh/rescue/ovh.sh
+++ b/sh/rescue/ovh.sh
@@ -27,7 +27,7 @@ rescue_wipe_0_init_ovh_vle2() {
 	# boot / wipe
 	sh_fs_wipe "${device}2" "1G" 1
 	# boot / format
-	fs_make_btrfs "${device}2" "boot" \
+	sh_fs_make_btrfs "${device}2" "boot" \
 		"00000000-0000-0000-0000-00000000000b"
 	# boot / mount
 	mkdir --parents "/media/boot"
@@ -59,7 +59,7 @@ rescue_wipe_2_make_ovh_vle2() {
 	# passphrase
 	unset passphrase
 	# crypt / format
-	fs_make_btrfs "/dev/mapper/crypt" "crypt" \
+	sh_fs_make_btrfs "/dev/mapper/crypt" "crypt" \
 		"00000000-0000-0000-0000-00000000000c"
 	# crypt / mount
 	mkdir --parents "/media/crypt"