diff --git a/scripts/Arch/OS/setup.fish b/scripts/Arch/OS/setup.fish
index 430acf41..8f598534 100644
--- a/scripts/Arch/OS/setup.fish
+++ b/scripts/Arch/OS/setup.fish
@@ -12,7 +12,7 @@ begin
 
     set -q USER_NAME || set -l USER_NAME manuel
     set -q USER_DISPLAYNAME
-    and set -q USER_GROUPS || set -l USER_GROUPS
+    and set -q USER_GROUPS || set -l USER_GROUPS ""
     and begin
         set -l projectRoot (realpath "$dir/../../..")
         set -l projectName (basename "$projectRoot")