diff --git a/BauSystem_Main/src/de/steamwar/bausystem/worlddata/WorldData.java b/BauSystem_Main/src/de/steamwar/bausystem/worlddata/WorldData.java
index 539aaa5a..63f6ffc0 100644
--- a/BauSystem_Main/src/de/steamwar/bausystem/worlddata/WorldData.java
+++ b/BauSystem_Main/src/de/steamwar/bausystem/worlddata/WorldData.java
@@ -75,7 +75,7 @@ public class WorldData {
             worldData.remove("simulators");
             yapionObject.forEach((s, yapionAnyType) -> {
                 SteamwarUser steamwarUser = SteamwarUser.get(Integer.parseInt(s));
-                SimulatorData.saveSimulator(steamwarUser, (YAPIONObject) yapionAnyType);
+                SimulatorData.saveSimulator(steamwarUser, new YAPIONObject().add("", yapionAnyType));
             });
         }
     }