diff --git a/modules/programs.nix b/modules/programs.nix
index d62d400..172516c 100644
--- a/modules/programs.nix
+++ b/modules/programs.nix
@@ -69,6 +69,7 @@
       transmission-gtk # BitTorrent client
       gnome-solanum  # Pomodoro timer
       gnome.gnome-contacts
+      gnome.gnome-calendar # Calendar
       jameica # Hibiscus plugin -> HBCI online banking. Sparkasse-Nürnberg https://www.willuhn.de/wiki/doku.php?id=support:list:banken:spk#nuernberg.
       picard # Music tagger by MusicBrainz
     ];