diff --git a/default.nix b/default.nix
index 407e89f..77777a0 100644
--- a/default.nix
+++ b/default.nix
@@ -340,6 +340,8 @@ let
   # Use runCommand, not runCommandLocal, because makeBinaryWrapper pulls in a compiler.
   doomEmacs = runCommand "doom-emacs" {
     nativeBuildInputs = [ makeBinaryWrapper ];
+    # Expose this so we can push it to cachix.
+    inherit emacsWithPackages;
   } ''
   if [[ -z "${profileName}" ]]; then
     profileArgs=()
diff --git a/flake.nix b/flake.nix
index 741f944..e709d59 100644
--- a/flake.nix
+++ b/flake.nix
@@ -111,12 +111,13 @@
         }).doomEmacs;
         # TODO: cache more packages, cache for more Emacsen.
         cachix-packages = pkgs.linkFarm "unstraightened-cachix-packages" {
+          inherit doomemacs;
           full-emacs29 = (doomFromPackages pkgs {
             emacs = pkgs.emacs29;
             doomDir = ./doomdirs/minimal;
             doomLocalDir = "~/.local/share/nix-doom-unstraightened";
             full = true;
-          }).doomEmacs;
+          }).doomEmacs.emacsWithPackages.deps;
         };
       });
       overlays.default = final: prev: {