diff --git a/include/opendb/geom.h b/include/opendb/geom.h
index 1d7a4e8..165ed11 100644
--- a/include/opendb/geom.h
+++ b/include/opendb/geom.h
@@ -136,7 +136,7 @@ class GeomShape
   virtual int xMax() const = 0;
   virtual int yMax() const = 0;
   virtual std::vector<Point> getPoints() const = 0; 
-  ~GeomShape() = default;
+  virtual ~GeomShape() = default;
 };
 
 /*
diff --git a/src/db/dbBox.h b/src/db/dbBox.h
index 96e2329..f0a2ceb 100644
--- a/src/db/dbBox.h
+++ b/src/db/dbBox.h
@@ -71,6 +71,7 @@ class _dbBox : public _dbObject
   union dbBoxShape{
     Rect _rect;
     Oct  _oct;
+    ~dbBoxShape(){};
   };
 
   // PERSISTANT-MEMBERS