diff --git a/home/jonas/doom.nix b/home/jonas/doom.nix
index 64a761b..46e9927 100644
--- a/home/jonas/doom.nix
+++ b/home/jonas/doom.nix
@@ -22,6 +22,7 @@
     imagemagick
     ispell
     libtool
+    mermaid-filter
     mlocate
     nodejs
     pandoc