diff --git a/templates b/templates
index e25b963..62c56f6 100644
--- a/templates
+++ b/templates
@@ -188,7 +188,7 @@ nix-mode
              n> "preferWheels = true;"
              n> "extras = [\"*\"];"
              n> "editablePackageSources = {" (p "package") "=projectDir;};"
-             n> "extraPackages = ps: with ps; [" (p "isort mypy")"];"
+             n> "extraPackages = ps: with ps; [" (p "python-lsp-server isort mypy")"];"
              n> "})"
              n> ".env")