diff --git a/modules/nixos/default.nix b/modules/nixos/default.nix
index fa04b5a..1474610 100644
--- a/modules/nixos/default.nix
+++ b/modules/nixos/default.nix
@@ -66,6 +66,7 @@ in
       ticker # stock ticker
       tldr # cheat sheets
       tmpmail # temporary email address
+      topydo # todo.txt helper tool
       tt # typing test
       wtfutil # terminal homepage
       xh # curl