diff --git a/BBGE/SplineGrid.cpp b/BBGE/SplineGrid.cpp
index 3d7b2be..1f11f4b 100644
--- a/BBGE/SplineGrid.cpp
+++ b/BBGE/SplineGrid.cpp
@@ -11,6 +11,10 @@ SplineGridCtrlPoint::SplineGridCtrlPoint()
     setWidthHeight(8, 8);
 }
 
+SplineGridCtrlPoint::~SplineGridCtrlPoint()
+{
+}
+
 Vector SplineGridCtrlPoint::getSplinePosition() const
 {
     SplineGridCtrlPoint *p = (SplineGridCtrlPoint*)getParent();
diff --git a/BBGE/SplineGrid.h b/BBGE/SplineGrid.h
index 534252c..3a0503d 100644
--- a/BBGE/SplineGrid.h
+++ b/BBGE/SplineGrid.h
@@ -17,6 +17,7 @@ class SplineGridCtrlPoint : public Quad
 {
 public:
 	SplineGridCtrlPoint();
+	virtual ~SplineGridCtrlPoint();
 	virtual void onUpdate(float dt) OVERRIDE;
 	Vector getSplinePosition() const;
 	void setSplinePosition(Vector pos);
@@ -30,7 +31,7 @@ public:
 	typedef Vector value_type;
 
 	SplineGrid();
-	~SplineGrid();
+	virtual ~SplineGrid();
 
 	// # of control points on each axis
 	RenderGrid *resize(size_t w, size_t h, size_t xres, size_t yres, unsigned degx, unsigned degy);