diff --git a/pkgs/build-support/build-nim-package.nix b/pkgs/build-support/build-nim-package.nix
index 1e8489212cd6..ade88ea9d3db 100644
--- a/pkgs/build-support/build-nim-package.nix
+++ b/pkgs/build-support/build-nim-package.nix
@@ -15,6 +15,7 @@ let
   baseAttrs = {
     strictDeps = true;
     enableParallelBuilding = true;
+    __structuredAttrs = true;
     doCheck = true;
     configurePhase = ''
       runHook preConfigure