diff --git a/arch-setup/officialpkgs.txt b/arch-setup/officialpkgs.txt
index 2929368d..1103d264 100644
--- a/arch-setup/officialpkgs.txt
+++ b/arch-setup/officialpkgs.txt
@@ -51,3 +51,4 @@ libsecret
 capitaine-cursors
 thefuck
 lightdm
+tmux