diff --git a/hosts/dionach.nix b/hosts/dionach.nix
index dab9142..4f15a08 100644
--- a/hosts/dionach.nix
+++ b/hosts/dionach.nix
@@ -116,6 +116,7 @@
     taskwarrior                   # Highly flexible command-line tool to manage TODO lists
     tcpdump                       # tcpdump
     tectonic
+    tdesktop                      # Telegram Desktop messaging app
     termonad-with-packages
     texlive.combined.scheme-full
     tpm-tools