diff --git a/pkgs/development/python-modules/click-command-tree/default.nix b/pkgs/development/python-modules/click-command-tree/default.nix
index 6e67b31c24ae..bf1141b0c81c 100644
--- a/pkgs/development/python-modules/click-command-tree/default.nix
+++ b/pkgs/development/python-modules/click-command-tree/default.nix
@@ -12,6 +12,8 @@ buildPythonPackage (finalAttrs: {
   version = "1.2.0";
   pyproject = true;
 
+  __structuredAttrs = true;
+
   src = fetchFromGitHub {
     owner = "whwright";
     repo = "click-command-tree";