diff --git a/archinstall/lib/installer.py b/archinstall/lib/installer.py
index 5c0e0880..71d13241 100644
--- a/archinstall/lib/installer.py
+++ b/archinstall/lib/installer.py
@@ -2131,13 +2131,12 @@ def accessibility_tools_in_use() -> bool:
 
 def run_custom_user_commands(commands: list[str], installation: Installer) -> None:
 	for index, command in enumerate(commands):
-		script_path = f'/var/tmp/user-command.{index}.sh'
-		chroot_path = f'{installation.target}/{script_path}'
+		script_path = LPath(f'/var/tmp/user-command.{index}.sh')
+		chroot_path = installation.target / script_path.relative_to_root()
 
 		info(f'Executing custom command "{command}" ...')
-		with open(chroot_path, 'w') as user_script:
-			user_script.write(command)
+		chroot_path.write_text(command)
 
 		SysCommand(f'arch-chroot -S {installation.target} bash {script_path}')
 
-		os.unlink(chroot_path)
+		chroot_path.unlink()