diff --git a/server/gameserver/mt/Map.cc b/server/gameserver/mt/Map.cc
index 3121c0df..b9a24ef3 100644
--- a/server/gameserver/mt/Map.cc
+++ b/server/gameserver/mt/Map.cc
@@ -201,7 +201,8 @@ namespace mt
             };
 
         a8::XObject root;
-        if (root.ReadFromFile(MetaMgr::Instance()->GetResDir() + world_object_file())) {
+        if (!world_object_file().empty() &&
+            root.ReadFromFile(MetaMgr::Instance()->GetResDir() + world_object_file())) {
             {
                 auto thing = root.At("thing");
                 for (int i = 0; i < thing->Size(); ++i) {