diff --git a/ServoMotor.h b/ServoMotor.h
index 255bbaf..cfe62b3 100644
--- a/ServoMotor.h
+++ b/ServoMotor.h
@@ -17,6 +17,8 @@ class ServoMotor : public Thing {
   enum ControlMode { Position, Velocity };
   ControlMode controlMode = ControlMode::Position;
 
+  Thing* target = nullptr;
+
   virtual void SetTargetAngle(Angle16 angle);
   virtual Angle16 GetTargetAngle();
 
@@ -38,7 +40,7 @@ class ServoMotor : public Thing {
 
   float lastUpdateTimeMs = 0.0F;
 
-  virtual void SetAngle(Angle16 angle) = 0;
+  virtual void SetAngle(Angle16 angle) {};
 };
 
 }  // namespace RoboidContol