diff --git a/service/OneService.cpp b/service/OneService.cpp
index a089d11a8..69a0daca0 100644
--- a/service/OneService.cpp
+++ b/service/OneService.cpp
@@ -709,8 +709,8 @@ static void _moonToJson(nlohmann::json& mj, const World& world)
 	OSUtils::ztsnprintf(tmp, sizeof(tmp), "%.16llx", world.id());
 	mj["id"] = tmp;
 	mj["timestamp"] = world.timestamp();
-	mj["signature"] = Utils::hex(world.signature().data, ZT_C25519_SIGNATURE_LEN, tmp);
-	mj["updatesMustBeSignedBy"] = Utils::hex(world.updatesMustBeSignedBy().data, ZT_C25519_PUBLIC_KEY_LEN, tmp);
+	mj["signature"] = Utils::hex(world.signature().data, ZT_ECC_SIGNATURE_LEN, tmp);
+	mj["updatesMustBeSignedBy"] = Utils::hex(world.updatesMustBeSignedBy().data, ZT_ECC_PUBLIC_KEY_SET_LEN, tmp);
 	nlohmann::json ra = nlohmann::json::array();
 	for (std::vector<World::Root>::const_iterator r(world.roots().begin()); r != world.roots().end(); ++r) {
 		nlohmann::json rj;