diff --git a/src/nix/flake.cc b/src/nix/flake.cc
index b090ea201..e5aa424b5 100644
--- a/src/nix/flake.cc
+++ b/src/nix/flake.cc
@@ -100,6 +100,8 @@ static nlohmann::json flakeToJson(const Store & store, const Flake & flake)
         j["description"] = *flake.description;
     j["edition"] = flake.edition;
     j["url"] = flake.lockedRef.to_string();
+    j["original"] = attrsToJson(flake.originalRef.toAttrs());
+    j["locked"] = attrsToJson(flake.lockedRef.toAttrs());
     if (auto rev = flake.lockedRef.input->getRev())
         j["revision"] = rev->to_string(Base16, false);
     if (flake.sourceInfo->info.revCount)