diff --git a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
index ddd0e90c4..dcebc89a9 100644
--- a/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
+++ b/src/BulletDynamics/Dynamics/btDiscreteDynamicsWorld.h
@@ -150,6 +150,9 @@ public:
 	///apply gravity, call this once per timestep
 	virtual void	applyGravity();
 
+	virtual void	setNumTasks(int numTasks)
+	{
+	}
 
 };