diff --git a/scripts/Arch/OS/setup.sh b/scripts/Arch/OS/setup.sh
index fb07bdc6..8cf34ba5 100755
--- a/scripts/Arch/OS/setup.sh
+++ b/scripts/Arch/OS/setup.sh
@@ -9,7 +9,7 @@ ARCH_LANG="en_US.UTF-8";
 ARCH_KEYMAP="de_CH-latin1";
 LOCALE_PATTERN="\(de_CH\|en_US\)";
 
-USER_NAME="${USER_NAME}";
+USER_NAME="${USER_NAME:-manuel}";
 USER_DISPLAYNAME="${USER_DISPLAYNAME}";
 USER_GROUPS="${USER_GROUPS}";