diff --git a/include/Nazara/Physics/PhysObject.hpp b/include/Nazara/Physics/PhysObject.hpp
index e4fd64735..92c71a2bb 100644
--- a/include/Nazara/Physics/PhysObject.hpp
+++ b/include/Nazara/Physics/PhysObject.hpp
@@ -56,7 +56,7 @@ class NAZARA_API NzPhysObject : NzNonCopyable
 		void SetPosition(const NzVector3f& position);
 		void SetRotation(const NzQuaternionf& rotation);
 
-		NzPhysObject& operator=(NzPhysObject object);
+		NzPhysObject& operator=(const NzPhysObject& object);
 		NzPhysObject& operator=(NzPhysObject&& object);
 
 	private:
diff --git a/src/Nazara/Physics/PhysObject.cpp b/src/Nazara/Physics/PhysObject.cpp
index 56ff5b080..038a7062d 100644
--- a/src/Nazara/Physics/PhysObject.cpp
+++ b/src/Nazara/Physics/PhysObject.cpp
@@ -269,11 +269,8 @@ void NzPhysObject::SetRotation(const NzQuaternionf& rotation)
 	UpdateBody();
 }
 
-NzPhysObject& NzPhysObject::operator=(NzPhysObject object)
+NzPhysObject& NzPhysObject::operator=(const NzPhysObject& object)
 {
-	std::swap(*this, object);
-
-	return *this;
 }
 
 void NzPhysObject::UpdateBody()
@@ -282,10 +279,15 @@ void NzPhysObject::UpdateBody()
 
 	/*for (std::set<PhysObjectListener*>::iterator it = m_listeners.begin(); it != m_listeners.end(); ++it)
 		(*it)->PhysObjectOnUpdate(this);*/
+	NzPhysObject physObj(object);
+	return operator=(std::move(physObj));
 }
 
 NzPhysObject& NzPhysObject::operator=(NzPhysObject&& object)
 {
+	if (m_body)
+		NewtonDestroyBody(m_world->GetHandle(), m_body);
+
 	m_body               = object.m_body;
 	m_forceAccumulator   = std::move(object.m_forceAccumulator);
 	m_geom               = std::move(object.m_geom);