diff --git a/apps/openmw/mwphysics/object.cpp b/apps/openmw/mwphysics/object.cpp
index 6363065323..1e69136abb 100644
--- a/apps/openmw/mwphysics/object.cpp
+++ b/apps/openmw/mwphysics/object.cpp
@@ -27,8 +27,8 @@ namespace MWPhysics
         mCollisionObject->setUserPointer(this);
 
         setScale(ptr.getCellRef().getScale());
-        setRotation(Misc::Convert::toBullet(ptr.getRefData().getBaseNode()->getAttitude()));
-        setOrigin(Misc::Convert::toBullet(ptr.getRefData().getPosition().asVec3()));
+        setRotation(ptr.getRefData().getBaseNode()->getAttitude());
+        updatePosition();
         commitPositionChange();
 
         mTaskScheduler->addCollisionObject(mCollisionObject.get(), collisionType, CollisionType_Actor|CollisionType_HeightMap|CollisionType_Projectile);
@@ -51,17 +51,17 @@ namespace MWPhysics
         mScaleUpdatePending = true;
     }
 
-    void Object::setRotation(const btQuaternion& quat)
+    void Object::setRotation(const osg::Quat& quat)
     {
         std::unique_lock<std::mutex> lock(mPositionMutex);
-        mLocalTransform.setRotation(quat);
+        mRotation = quat;
         mTransformUpdatePending = true;
     }
 
-    void Object::setOrigin(const btVector3& vec)
+    void Object::updatePosition()
     {
         std::unique_lock<std::mutex> lock(mPositionMutex);
-        mLocalTransform.setOrigin(vec);
+        mPosition = mPtr.getRefData().getPosition().asVec3();
         mTransformUpdatePending = true;
     }
 
@@ -75,7 +75,10 @@ namespace MWPhysics
         }
         if (mTransformUpdatePending)
         {
-            mCollisionObject->setWorldTransform(mLocalTransform);
+            btTransform trans;
+            trans.setOrigin(Misc::Convert::toBullet(mPosition));
+            trans.setRotation(Misc::Convert::toBullet(mRotation));
+            mCollisionObject->setWorldTransform(trans);
             mTransformUpdatePending = false;
         }
     }
@@ -93,7 +96,10 @@ namespace MWPhysics
     btTransform Object::getTransform() const
     {
         std::unique_lock<std::mutex> lock(mPositionMutex);
-        return mLocalTransform;
+        btTransform trans;
+        trans.setOrigin(Misc::Convert::toBullet(mPosition));
+        trans.setRotation(Misc::Convert::toBullet(mRotation));
+        return trans;
     }
 
     bool Object::isSolid() const
diff --git a/apps/openmw/mwphysics/object.hpp b/apps/openmw/mwphysics/object.hpp
index cae8771809..c640318c78 100644
--- a/apps/openmw/mwphysics/object.hpp
+++ b/apps/openmw/mwphysics/object.hpp
@@ -16,7 +16,6 @@ namespace Resource
 }
 
 class btCollisionObject;
-class btQuaternion;
 class btVector3;
 
 namespace MWPhysics
@@ -31,8 +30,8 @@ namespace MWPhysics
 
         const Resource::BulletShapeInstance* getShapeInstance() const;
         void setScale(float scale);
-        void setRotation(const btQuaternion& quat);
-        void setOrigin(const btVector3& vec);
+        void setRotation(const osg::Quat& quat);
+        void updatePosition();
         void commitPositionChange();
         btCollisionObject* getCollisionObject();
         const btCollisionObject* getCollisionObject() const;
@@ -51,7 +50,8 @@ namespace MWPhysics
         std::map<int, osg::NodePath> mRecIndexToNodePath;
         bool mSolid;
         btVector3 mScale;
-        btTransform mLocalTransform;
+        osg::Vec3f mPosition;
+        osg::Quat mRotation;
         bool mScaleUpdatePending;
         bool mTransformUpdatePending;
         mutable std::mutex mPositionMutex;
diff --git a/apps/openmw/mwphysics/physicssystem.cpp b/apps/openmw/mwphysics/physicssystem.cpp
index 833bb9a161..0e616e7415 100644
--- a/apps/openmw/mwphysics/physicssystem.cpp
+++ b/apps/openmw/mwphysics/physicssystem.cpp
@@ -630,7 +630,7 @@ namespace MWPhysics
         ObjectMap::iterator found = mObjects.find(ptr);
         if (found != mObjects.end())
         {
-            found->second->setRotation(Misc::Convert::toBullet(ptr.getRefData().getBaseNode()->getAttitude()));
+            found->second->setRotation(ptr.getRefData().getBaseNode()->getAttitude());
             mTaskScheduler->updateSingleAabb(found->second);
             return;
         }
@@ -651,7 +651,7 @@ namespace MWPhysics
         ObjectMap::iterator found = mObjects.find(ptr);
         if (found != mObjects.end())
         {
-            found->second->setOrigin(Misc::Convert::toBullet(ptr.getRefData().getPosition().asVec3()));
+            found->second->updatePosition();
             mTaskScheduler->updateSingleAabb(found->second);
             return;
         }