diff --git a/roles/home/helix.nix b/roles/home/helix.nix
index f07450c..d86fa66 100644
--- a/roles/home/helix.nix
+++ b/roles/home/helix.nix
@@ -43,6 +43,7 @@ in
       gofumpt
       taplo
       docker-compose-language-service
+      mdformat
     ] ++ nodePkgs;
 
     sessionVariables = {