diff --git a/flake.nix b/flake.nix
index 163219e..43a8f52 100644
--- a/flake.nix
+++ b/flake.nix
@@ -45,7 +45,7 @@
           (final: prev: {
             emacs-vterm =
               ((pkgs.emacsPackagesFor pkgs.emacs29-pgtk).emacsWithPackages
-                (epkgs: with epkgs; [ vterm ]));
+                (epkgs: with epkgs; [ vterm mu4e ]));
           })
         ];
       };