diff --git a/host/home/Backup.nix b/host/home/Backup.nix
index e102c44..bc0f7fe 100644
--- a/host/home/Backup.nix
+++ b/host/home/Backup.nix
@@ -74,7 +74,7 @@
 		echo "Backup : Complete ''${bupsize}."
 	'';
 in {
-	systemd.services.backup = {
+	systemd.services.backup = util.mkStaticSystemdService {
 		enable = true;
 		description = "Home system backup.";
 		serviceConfig = {
diff --git a/host/home/Nextcloud.nix b/host/home/Nextcloud.nix
index 584211d..f847633 100644
--- a/host/home/Nextcloud.nix
+++ b/host/home/Nextcloud.nix
@@ -4,7 +4,7 @@
 		docker exec -u 33 cloud php -f /var/www/html/cron.php || notify 'Nextcloud : Failed to run cron.'
 	'';
 in {
-	systemd.services.nextcloud = {
+	systemd.services.nextcloud = util.mkStaticSystemdService {
 		enable = true;
 		description = "Nextcloud worker.";
 		serviceConfig = {
diff --git a/host/home/PhotosProcess.nix b/host/home/PhotosProcess.nix
index 02bdf7f..22a900c 100644
--- a/host/home/PhotosProcess.nix
+++ b/host/home/PhotosProcess.nix
@@ -1,11 +1,11 @@
-{ pkgs, ... }: let
+{ pkgs, util, ... }: let
 	script = ''
 		in="/storage/hot/docker/cloud/data/data/cakee/files/media/photo/"
 		out="/storage/cold_1/backup/tmp/photo/"
 		docker run --rm -v "''${in}":/in -v "''${out}":/out voronind.com/photoprocess:latest
 	'';
 in {
-	systemd.services.photos_process = {
+	systemd.services.photos_process = util.mkStaticSystemdService {
 		enable = true;
 		description = "Process uploaded photos.";
 		serviceConfig = {
diff --git a/host/home/YandexMusic.nix b/host/home/YandexMusic.nix
index 52de188..b63d6dc 100644
--- a/host/home/YandexMusic.nix
+++ b/host/home/YandexMusic.nix
@@ -1,10 +1,10 @@
-{ pkgs, ... }: let
+{ pkgs, util, ... }: let
 	script = ''
 		music="/storage/hot/media/music/"
 		docker run --rm -v "''${music}":/music voronind.com/yamusic:latest
 	'';
 in {
-	systemd.services.yandex_music = {
+	systemd.services.yandex_music = util.mkStaticSystemdService {
 		enable = true;
 		description = "Sync music from Yandex.Music.";
 		serviceConfig = {
diff --git a/module/common/AutoUpdateSigned.nix b/module/common/AutoUpdateSigned.nix
index 4124225..0a2cd99 100644
--- a/module/common/AutoUpdateSigned.nix
+++ b/module/common/AutoUpdateSigned.nix
@@ -1,11 +1,8 @@
-{ const, pkgs, lib, secret, ... }: {
-	systemd.services.autoupdate = {
-		enable = true;
-		description        = "Signed system auto-update.";
-		restartIfChanged   = false;
+{ const, pkgs, lib, secret, util, ... }: {
+	systemd.services.autoupdate = util.mkStaticSystemdService {
+		enable      = true;
+		description = "Signed system auto-update.";
 		serviceConfig.Type = "oneshot";
-		stopIfChanged      = false;
-		unitConfig.X-StopOnRemoval = false;
 		path = with pkgs; [
 			bash
 			git
diff --git a/part/Util.nix b/part/Util.nix
index 8a3dbb0..ff70dfc 100644
--- a/part/Util.nix
+++ b/part/Util.nix
@@ -14,4 +14,11 @@
 	catText = files: args: builtins.foldl' (acc: mod:
 		acc + trimTabs ((import mod args).text)
 	) "" files;
+
+	# Systemd service that does not restart with system switch.
+	mkStaticSystemdService = params: params // {
+		restartIfChanged = false;
+		stopIfChanged    = false;
+		unitConfig.X-StopOnRemoval = false;
+	};
 }