diff --git a/services/terraria/windy_limbo_of_melancholy.nix b/services/terraria/windy_limbo_of_melancholy.nix
index c673f58b..d8282f2e 100644
--- a/services/terraria/windy_limbo_of_melancholy.nix
+++ b/services/terraria/windy_limbo_of_melancholy.nix
@@ -1,4 +1,5 @@
-{...}: {
+{pkgs, ...}: {
+  environment.systemPackages = with pkgs; [tmux];
   services.terraria = {
     enable = true;
     maxPlayers = 10;