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