diff --git a/modules/editors/emacs.nix b/modules/editors/emacs.nix
index a2c2f32..8ce7f5c 100644
--- a/modules/editors/emacs.nix
+++ b/modules/editors/emacs.nix
@@ -37,6 +37,7 @@ in {
       languagetool
       # :tools lookup & :lang org +roam
       sqlite
+      graphviz
       # :lang latex & :lang org (latex previews)
       texlive.combined.scheme-full
       # :lang nix