diff --git a/framework/engine/src/mm/services/scene_service_interface.hpp b/framework/engine/src/mm/services/scene_service_interface.hpp
index 26f09cc..4386a39 100644
--- a/framework/engine/src/mm/services/scene_service_interface.hpp
+++ b/framework/engine/src/mm/services/scene_service_interface.hpp
@@ -26,12 +26,12 @@ namespace MM::Services {
 			virtual ::MM::Scene& getScene(void) = 0;
 
 			// enques a new Scene to be put in place
-			virtual void changeScene(std::unique_ptr<::MM::Scene> new_scene) = 0;
+			virtual void changeScene(std::unique_ptr<::MM::Scene>&& new_scene) = 0;
 
 			// sets the new Scene to be provided.
 			// dont use, except for when you know what you are doing!
 			// be carefull of that one (lol)
-			virtual void changeSceneNow(std::unique_ptr<::MM::Scene> new_scene) = 0;
+			virtual void changeSceneNow(std::unique_ptr<::MM::Scene>&& new_scene) = 0;
 
 			// adds a System to current Scene.
 			// default impl. will use getScene() !
diff --git a/framework/simple_scene/src/mm/services/simple_scene.cpp b/framework/simple_scene/src/mm/services/simple_scene.cpp
index 5c82a60..6bc81bb 100644
--- a/framework/simple_scene/src/mm/services/simple_scene.cpp
+++ b/framework/simple_scene/src/mm/services/simple_scene.cpp
@@ -72,7 +72,7 @@ void SimpleSceneService::changeSceneFixedUpdate(Engine& engine) {
 	}
 }
 
-void SimpleSceneService::changeScene(std::unique_ptr<Scene> new_scene) {
+void SimpleSceneService::changeScene(std::unique_ptr<Scene>&& new_scene) {
 	if (_next_scene) {
 		LOG_SSS("warn: already next scene enqueued! overwriting...");
 	}
@@ -85,7 +85,7 @@ void SimpleSceneService::changeScene(std::unique_ptr<Scene> new_scene) {
 	//}
 }
 
-void SimpleSceneService::changeSceneNow(std::unique_ptr<Scene> new_scene) {
+void SimpleSceneService::changeSceneNow(std::unique_ptr<Scene>&& new_scene) {
 	_scene = std::move(new_scene);
 	//_scene->set<MM::Engine*>(&engine); // make engine accessible from scene
 
diff --git a/framework/simple_scene/src/mm/services/simple_scene.hpp b/framework/simple_scene/src/mm/services/simple_scene.hpp
index 79ce522..97e6ee9 100644
--- a/framework/simple_scene/src/mm/services/simple_scene.hpp
+++ b/framework/simple_scene/src/mm/services/simple_scene.hpp
@@ -25,10 +25,10 @@ namespace MM::Services {
 		public:
 			Scene& getScene(void) override { return *_scene; }
 
-			void changeScene(std::unique_ptr<Scene> new_scene) override;
+			void changeScene(std::unique_ptr<Scene>&& new_scene) override;
 
 			// be carefull of that one
-			void changeSceneNow(std::unique_ptr<Scene> new_scene) override;
+			void changeSceneNow(std::unique_ptr<Scene>&& new_scene) override;
 	};
 
 } // MM::Services