diff --git a/libsrc/meshing/basegeom.cpp b/libsrc/meshing/basegeom.cpp
index 7dc12a35..4868b5a0 100644
--- a/libsrc/meshing/basegeom.cpp
+++ b/libsrc/meshing/basegeom.cpp
@@ -126,12 +126,6 @@ namespace netgen
     return 0;
   }
 
-  const Refinement & NetgenGeometry :: GetRefinement () const
-  {
-    return *new Refinement(*this);
-  }
-
-
   void NetgenGeometry :: Save (string filename) const
   {
     throw NgException("Cannot save geometry - no geometry available");
diff --git a/libsrc/meshing/basegeom.hpp b/libsrc/meshing/basegeom.hpp
index 50eeffb4..221e875b 100644
--- a/libsrc/meshing/basegeom.hpp
+++ b/libsrc/meshing/basegeom.hpp
@@ -15,12 +15,20 @@ namespace netgen
 
   class DLL_HEADER NetgenGeometry
   {
+    unique_ptr<Refinement> ref;
   public:
+    NetgenGeometry()
+    {
+      ref = make_unique<Refinement>(*this);
+    }
     virtual ~NetgenGeometry () { ; }
 
     virtual int GenerateMesh (shared_ptr<Mesh> & mesh, MeshingParameters & mparam);
 
-    virtual const Refinement & GetRefinement () const;
+    virtual const Refinement & GetRefinement () const
+    {
+      return *ref;
+    }
 
     virtual void DoArchive(Archive&)
   { throw NgException("DoArchive not implemented for " + Demangle(typeid(*this).name())); }