diff --git a/src/Main/options.cxx b/src/Main/options.cxx
index b163674..051858f 100644
--- a/src/Main/options.cxx
+++ b/src/Main/options.cxx
@@ -274,6 +274,8 @@ void fgSetDefaults ()
 
     //zhongjin
     //Addon
+    const auto& addonManager = addons::AddonManager::instance();
+
     SGPath addonPath = globals->get_fg_root();
     addonPath.append("Addon/RedGriffinATC");