diff --git a/sh/alias/overlay.sh b/sh/alias/overlay.sh
index 82fe273..9418f75 100644
--- a/sh/alias/overlay.sh
+++ b/sh/alias/overlay.sh
@@ -1,3 +1,25 @@
+obm() { a__overlay_bind_mount "${@}"; }
+a__overlay_bind_mount() {
+	local directory
+	for directory in "dev" "dev/pts" "proc" "sys"; do
+		if ! mount --bind "/${directory}" "overlay/mount/${directory}"; then
+			sh_log_error "Unable to bind mount directory: ${directory}"
+			return 1
+		fi
+	done
+}
+
+obu() { a__overlay_bind_unmount "${@}"; }
+a__overlay_bind_unmount() {
+	local directory
+	for directory in "sys" "proc" "dev/pts" "dev"; do
+		if ! umount --lazy "overlay/mount/${directory}"; then
+			sh_log_error "Unable to bind unmount directory: ${directory}"
+			return 1
+		fi
+	done
+}
+
 orm() { a__overlay_root_mount "${@}"; }
 a__overlay_root_mount() {
 	local root="${1}"
@@ -74,17 +96,6 @@ a__overlay_root_unmount() {
 	fi
 }
 
-obm() { a__overlay_bind_mount "${@}"; }
-a__overlay_bind_mount() {
-	local directory
-	for directory in "dev" "dev/pts" "proc" "sys"; do
-		if ! mount --bind "/${directory}" "overlay/mount/${directory}"; then
-			sh_log_error "Unable to bind mount directory: ${directory}"
-			return 1
-		fi
-	done
-}
-
 ocr() { a__overlay_command_root "${@}"; }
 a__overlay_command_root() {
 	chroot \
@@ -98,17 +109,6 @@ a__overlay_command_user() {
 		"overlay/mount" "${@}"
 }
 
-obu() { a__overlay_bind_unmount "${@}"; }
-a__overlay_bind_unmount() {
-	local directory
-	for directory in "sys" "proc" "dev/pts" "dev"; do
-		if ! umount --lazy "overlay/mount/${directory}"; then
-			sh_log_error "Unable to bind unmount directory: ${directory}"
-			return 1
-		fi
-	done
-}
-
 omm() { a__overlay_mirror_mount "${@}"; }
 a__overlay_mirror_mount() {
 	mount --make-rslave --rbind "/deb" "overlay/mount/deb"