diff --git a/lib/wal/sources/Entity/Entity.hpp b/lib/wal/sources/Entity/Entity.hpp
index 061b42e4..8e157c6e 100644
--- a/lib/wal/sources/Entity/Entity.hpp
+++ b/lib/wal/sources/Entity/Entity.hpp
@@ -111,7 +111,7 @@ namespace WAL
 		Entity(Entity &&) = default;
 		//! @brief A default destructor
 		~Entity() = default;
-		//! @brief An entity is assignable
-		Entity &operator=(const Entity &) = default;
+		//! @brief An entity is not assignable
+		Entity &operator=(const Entity &) = delete;
 	};
 } // namespace WAL
\ No newline at end of file
diff --git a/lib/wal/sources/Scene/Scene.cpp b/lib/wal/sources/Scene/Scene.cpp
index 0ec83228..3c07f3c8 100644
--- a/lib/wal/sources/Scene/Scene.cpp
+++ b/lib/wal/sources/Scene/Scene.cpp
@@ -10,4 +10,8 @@ namespace WAL
 	{
 		return this->_entities;
 	}
+	Scene &Scene::operator=(const Scene &)
+	{
+		return *this;
+	}
 } // namespace WAL
\ No newline at end of file
diff --git a/lib/wal/sources/Scene/Scene.hpp b/lib/wal/sources/Scene/Scene.hpp
index c36a6a0c..bddf1e5c 100644
--- a/lib/wal/sources/Scene/Scene.hpp
+++ b/lib/wal/sources/Scene/Scene.hpp
@@ -36,7 +36,7 @@ namespace WAL
 		//! @brief A default destructor
 		~Scene() = default;
 		//! @brief A scene is assignable
-		Scene &operator=(const Scene &) = default;
+		Scene &operator=(const Scene &);
 		Scene(Scene &&) = default;
 	};
 } // namespace WAL
\ No newline at end of file
diff --git a/lib/wal/sources/Wal.cpp b/lib/wal/sources/Wal.cpp
index 5bab4a43..875e3bd8 100644
--- a/lib/wal/sources/Wal.cpp
+++ b/lib/wal/sources/Wal.cpp
@@ -12,7 +12,7 @@ namespace WAL
 
 	void Wal::_update(std::chrono::nanoseconds dtime)
 	{
-		auto &entities = this->scene.getEntities();
+		auto &entities = this->scene->getEntities();
 
 		for (auto &system : this->_systems) {
 			for (auto &entity : entities) {
@@ -26,7 +26,7 @@ namespace WAL
 
 	void Wal::_fixedUpdate()
 	{
-		auto &entities = this->scene.getEntities();
+		auto &entities = this->scene->getEntities();
 
 		for (auto &system : this->_systems) {
 			for (auto &entity : entities) {
diff --git a/lib/wal/sources/Wal.hpp b/lib/wal/sources/Wal.hpp
index ec2d1786..0cb32505 100644
--- a/lib/wal/sources/Wal.hpp
+++ b/lib/wal/sources/Wal.hpp
@@ -39,7 +39,7 @@ namespace WAL
 		static bool _hasDependencies(const Entity &entity, const System &system);
 	public:
 		//! @brief The scene that contains entities.
-		Scene scene;
+		std::shared_ptr<Scene> scene;
 		//! @brief The time between each fixed update.
 		static std::chrono::nanoseconds timestep;
 
diff --git a/sources/Runner/Runner.cpp b/sources/Runner/Runner.cpp
index 06c2cd6b..baa4eb96 100644
--- a/sources/Runner/Runner.cpp
+++ b/sources/Runner/Runner.cpp
@@ -45,11 +45,12 @@ namespace BBM
 
 	int run()
 	{
+		WAL::Scene gameScene = loadGameScene();
 		WAL::Wal wal;
 		wal.addSystem<MovableSystem>();
 		enableRaylib(wal);
 		WAL::Scene scene = loadGameScene();
-		wal.scene = scene;
+		wal.scene = std::make_shared<WAL::Scene>(scene);
 
 
 		// wal.scene = loadGameScene();