diff --git a/src/object.cc b/src/object.cc
index 44afa20..8e3fde4 100644
--- a/src/object.cc
+++ b/src/object.cc
@@ -76,6 +76,15 @@ Shape::Shape(Vector3 o)
 { }
 
 
+/*
+ * Shape::~Shape() --
+ *
+ * Destructor.
+ */
+Shape::~Shape()
+{ }
+
+
 /*
  * Shape::get_material --
  * Shape::set_material --
diff --git a/src/object.h b/src/object.h
index 4b84e5e..af36e28 100644
--- a/src/object.h
+++ b/src/object.h
@@ -34,6 +34,7 @@ class Shape
 public:
     Shape();
     Shape(Vector3 o);
+    virtual ~Shape();
 
     Material &get_material() const;
     void set_material(Material *mat);