diff --git a/pkgs/development/tools/rust/cargo-pgrx/buildPgrxExtension.nix b/pkgs/development/tools/rust/cargo-pgrx/buildPgrxExtension.nix
index ecffd2a3f5f5..df4cc7fa1202 100644
--- a/pkgs/development/tools/rust/cargo-pgrx/buildPgrxExtension.nix
+++ b/pkgs/development/tools/rust/cargo-pgrx/buildPgrxExtension.nix
@@ -124,6 +124,8 @@ lib.extendMkDerivation {
       cargoPgrxFlags' = lib.escapeShellArgs cargoPgrxFlags;
     in
     {
+      __structuredAttrs = true;
+
       buildInputs = (args.buildInputs or [ ]);
 
       nativeBuildInputs =