diff --git a/Engine.Serialization/Converters/BehaviourControllerConverter.cs b/Engine.Serialization/Converters/BehaviourControllerConverter.cs
index 4ac0f45..4fb0f30 100644
--- a/Engine.Serialization/Converters/BehaviourControllerConverter.cs
+++ b/Engine.Serialization/Converters/BehaviourControllerConverter.cs
@@ -32,7 +32,8 @@ public class BehaviourControllerConverter : IEngineTypeYamlConverter
         SerializedClass instanceSerializedClass = (SerializedClass)rootDeserializer(typeof(SerializedClass))!;
         behaviourController = (IBehaviourController)instanceSerializedClass.CreateInstance();
 
-        if (parser.Consume<Scalar>().Value.CompareTo(nameof(IBehaviourController.StateEnable)) != 0)
+        string value = parser.Consume<Scalar>().Value;
+        if (value.CompareTo(nameof(IBehaviourController.StateEnable)) != 0)
             throw new();
         stateEnable = (IStateEnable)rootDeserializer(typeof(IStateEnable))!;
 
@@ -69,7 +70,7 @@ public class BehaviourControllerConverter : IEngineTypeYamlConverter
         serializer(behaviourController.StateEnable);
 
         emitter.Emit(new Scalar(BEHAVIOURS_SCALAR_NAME));
-        serializer(behaviourController.GetBehaviours<IBehaviour>());
+        serializer(behaviourController.GetBehaviours<IBehaviour>().Where(b => !b.GetType().HasAttribute<IgnoreSerializationAttribute>()));
 
         emitter.Emit(new MappingEnd());
     }
diff --git a/Engine.Serialization/Converters/UniverseObjectConverter.cs b/Engine.Serialization/Converters/UniverseObjectConverter.cs
index 8a5bc30..1a12a83 100644
--- a/Engine.Serialization/Converters/UniverseObjectConverter.cs
+++ b/Engine.Serialization/Converters/UniverseObjectConverter.cs
@@ -88,7 +88,7 @@ public class UniverseObjectConverter : IEngineTypeYamlConverter
         serializer(universeObject.BehaviourController);
 
         emitter.Emit(new Scalar(nameof(IUniverseObject.Children)));
-        serializer(universeObject.Children);
+        serializer(universeObject.Children.Where(c => !c.GetType().HasAttribute<IgnoreSerializationAttribute>()));
 
         emitter.Emit(new MappingEnd());
     }