diff --git a/include/Nazara/Graphics/Model.hpp b/include/Nazara/Graphics/Model.hpp
index b794d098b..80fc8c3db 100644
--- a/include/Nazara/Graphics/Model.hpp
+++ b/include/Nazara/Graphics/Model.hpp
@@ -10,8 +10,8 @@
 #include <Nazara/Prerequesites.hpp>
 #include <Nazara/Core/Resource.hpp>
 #include <Nazara/Core/ResourceLoader.hpp>
-#include <Nazara/Graphics/Material.hpp>
 #include <Nazara/Graphics/InstancedRenderable.hpp>
+#include <Nazara/Graphics/Material.hpp>
 #include <Nazara/Utility/Mesh.hpp>
 
 struct NAZARA_GRAPHICS_API NzModelParameters
@@ -34,7 +34,6 @@ using NzModelRef = NzObjectRef<NzModel>;
 class NAZARA_GRAPHICS_API NzModel : public NzInstancedRenderable, public NzResource
 {
 	friend NzModelLoader;
-	friend class NzScene;
 
 	public:
 		NzModel();
diff --git a/include/Nazara/Graphics/Sprite.inl b/include/Nazara/Graphics/Sprite.inl
index 1ce1cf534..1051fee6f 100644
--- a/include/Nazara/Graphics/Sprite.inl
+++ b/include/Nazara/Graphics/Sprite.inl
@@ -72,7 +72,7 @@ inline void NzSprite::SetDefaultMaterial()
 	material->Enable(nzRendererParameter_FaceCulling, false);
 	material->EnableLighting(false);
 
-	SetMaterial(material);
+	SetMaterial(std::move(material));
 }
 
 inline void NzSprite::SetMaterial(NzMaterialRef material, bool resizeSprite)