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 =
diff --git a/pkgs/servers/sql/postgresql/ext/tsja.nix b/pkgs/servers/sql/postgresql/ext/tsja.nix
index 1610f414f038..141d7652fa03 100644
--- a/pkgs/servers/sql/postgresql/ext/tsja.nix
+++ b/pkgs/servers/sql/postgresql/ext/tsja.nix
@@ -24,6 +24,9 @@ stdenv.mkDerivation (finalAttrs: {
     substituteInPlace tsja.c --replace-fail /usr/local/lib/mecab ${mecab}/lib/mecab
   '';
 
+  strictDeps = true;
+  __structuredAttrs = true;
+
   buildInputs = [
     mecab
     postgresql
diff --git a/pkgs/servers/sql/postgresql/postgresqlBuildExtension.nix b/pkgs/servers/sql/postgresql/postgresqlBuildExtension.nix
index 1fc3574fc77e..bcb566f722fd 100644
--- a/pkgs/servers/sql/postgresql/postgresqlBuildExtension.nix
+++ b/pkgs/servers/sql/postgresql/postgresqlBuildExtension.nix
@@ -89,6 +89,7 @@ lib.extendMkDerivation {
         };
 
       strictDeps = true;
+      __structuredAttrs = true;
       buildInputs = [ postgresql ] ++ prevAttrs.buildInputs or [ ];
       nativeBuildInputs = [ postgresql.pg_config ] ++ prevAttrs.nativeBuildInputs or [ ];