diff --git a/apps/openmw/engine.cpp b/apps/openmw/engine.cpp
index 3eaff2fe14..2f0d52772f 100644
--- a/apps/openmw/engine.cpp
+++ b/apps/openmw/engine.cpp
@@ -179,6 +179,8 @@ bool OMW::Engine::frameStarted(const Ogre::FrameEvent& evt)
 
             focusFrameCounter = 0;
         }
+
+        mEnvironment.mWorld->doPhysics (mEnvironment.mFrameDuration);
     }
     catch (const std::exception& e)
     {
diff --git a/apps/openmw/mwworld/world.cpp b/apps/openmw/mwworld/world.cpp
index 9ec5ea52c9..38e553286d 100644
--- a/apps/openmw/mwworld/world.cpp
+++ b/apps/openmw/mwworld/world.cpp
@@ -833,4 +833,9 @@ namespace MWWorld
         if (y<0)
             --cellY;
     }
+
+    void World::doPhysics (float duration)
+    {
+        mScene.doPhysics (duration, *this);
+    }
 }
diff --git a/apps/openmw/mwworld/world.hpp b/apps/openmw/mwworld/world.hpp
index ce66a63d7e..e44bdf27c6 100644
--- a/apps/openmw/mwworld/world.hpp
+++ b/apps/openmw/mwworld/world.hpp
@@ -162,6 +162,9 @@ namespace MWWorld
 
             void positionToIndex (float x, float y, int &cellX, int &cellY) const;
             ///< Convert position to cell numbers
+
+            void doPhysics (float duration);
+            ///< Run physics simulation and modify \a world accordingly.
     };
 }