Index: api/logic/minecraft/MojangVersionFormat.cpp
--- api/logic/minecraft/MojangVersionFormat.cpp.orig
+++ api/logic/minecraft/MojangVersionFormat.cpp
@@ -338,7 +338,7 @@ QJsonObject MojangVersionFormat::libraryToJson(Library
     {
         libRoot.insert("url", library->m_repositoryURL);
     }
-    if (library->isNative())
+    if (library->isNative() && !library->m_nativeClassifiers.empty())
     {
         QJsonObject nativeList;
         auto iter = library->m_nativeClassifiers.begin();
