diff --git a/pkgs/applications/editors/vscode/extensions/azdavis.millet/default.nix b/pkgs/applications/editors/vscode/extensions/azdavis.millet/default.nix
new file mode 100644
index 000000000000..af1e8c3df0f3
--- /dev/null
+++ b/pkgs/applications/editors/vscode/extensions/azdavis.millet/default.nix
@@ -0,0 +1,30 @@
+{
+  lib,
+  jq,
+  moreutils,
+  millet,
+  vscode-utils,
+}:
+
+vscode-utils.buildVscodeMarketplaceExtension {
+  mktplcRef = {
+    name = "Millet";
+    publisher = "azdavis";
+    version = "0.13.5";
+    hash = "sha256-sWM7N+axgu1zOGWexR4JVupVmYhZrd4cZz3pmLxRj8Q=";
+  };
+  nativeBuildInputs = [
+    jq
+    moreutils
+  ];
+  postInstall = ''
+    cd "$out/$installPrefix"
+    jq '.contributes.configuration.properties."millet.server.path".default = "${millet}/bin/millet-ls"' package.json | sponge package.json
+  '';
+  meta = {
+    description = "Standard ML support for VS Code";
+    downloadPage = "https://marketplace.visualstudio.com/items?itemName=azdavis.millet";
+    license = lib.licenses.mit;
+    maintainers = [ lib.maintainers.smasher164 ];
+  };
+}
diff --git a/pkgs/applications/editors/vscode/extensions/default.nix b/pkgs/applications/editors/vscode/extensions/default.nix
index dba41b89a4db..1029f4e3ca20 100644
--- a/pkgs/applications/editors/vscode/extensions/default.nix
+++ b/pkgs/applications/editors/vscode/extensions/default.nix
@@ -17,7 +17,6 @@
 , moreutils
 , racket
 , alejandra
-, millet
 , shfmt
 , tinymist
 , typst-lsp
@@ -448,25 +447,7 @@ let
         };
       };
 
-      azdavis.millet = buildVscodeMarketplaceExtension {
-        mktplcRef = {
-          name = "Millet";
-          publisher = "azdavis";
-          version = "0.13.5";
-          hash = "sha256-sWM7N+axgu1zOGWexR4JVupVmYhZrd4cZz3pmLxRj8Q=";
-        };
-        nativeBuildInputs = [ jq moreutils ];
-        postInstall = ''
-          cd "$out/$installPrefix"
-          jq '.contributes.configuration.properties."millet.server.path".default = "${millet}/bin/millet-ls"' package.json | sponge package.json
-        '';
-        meta = {
-          description = "Standard ML support for VS Code";
-          downloadPage = "https://marketplace.visualstudio.com/items?itemName=azdavis.millet";
-          license = lib.licenses.mit;
-          maintainers = [ lib.maintainers.smasher164 ];
-        };
-      };
+      azdavis.millet = callPackage ./azdavis.millet { };
 
       b4dm4n.vscode-nixpkgs-fmt = buildVscodeMarketplaceExtension {
         mktplcRef = {