diff --git a/scripts/Arch/OS/setup.fish b/scripts/Arch/OS/setup.fish
index 286fa487..68f5b382 100644
--- a/scripts/Arch/OS/setup.fish
+++ b/scripts/Arch/OS/setup.fish
@@ -71,7 +71,7 @@ begin
             and arch-chroot "$mountDir" mkinitcpio -P
             and arch-chroot "$mountDir" bash "$tempDir/../Software/GRUB/install.sh"
             and arch-chroot "$mountDir" bash "$tempDir/../Software/sudo/install.sh"
-            and pacstrap -K "$mountDir" git fish nix
+            and pacstrap -K "$mountDir" fish nix tmux
 
             and USER_NAME="$USER_NAME" \
             USER_DISPLAYNAME="$USER_DISPLAYNAME" \