diff --git a/pkgs/by-name/li/libpsl/package.nix b/pkgs/by-name/li/libpsl/package.nix
index 1a29128c1174..b28a173c9092 100644
--- a/pkgs/by-name/li/libpsl/package.nix
+++ b/pkgs/by-name/li/libpsl/package.nix
@@ -56,6 +56,8 @@ stdenv.mkDerivation (finalAttrs: {
     libxslt
   ];
 
+  strictDeps = true;
+
   propagatedBuildInputs = [
     publicsuffix-list
   ];
@@ -83,6 +85,8 @@ stdenv.mkDerivation (finalAttrs: {
 
   doCheck = true;
 
+  __structuredAttrs = true;
+
   meta = {
     description = "C library for the Publix Suffix List";
     longDescription = ''