diff --git a/libsrc/geom2d/geometry2d.hpp b/libsrc/geom2d/geometry2d.hpp
index 26fea07e..15e9e80d 100644
--- a/libsrc/geom2d/geometry2d.hpp
+++ b/libsrc/geom2d/geometry2d.hpp
@@ -48,6 +48,10 @@ namespace netgen
       layer = 1;
     }
 
+    ~SplineSegExt ()
+    {
+      delete &seg;
+    }
     
     virtual const GeomPoint<2> & StartPI () const 
     { 
diff --git a/libsrc/interface/nginterface.cpp b/libsrc/interface/nginterface.cpp
index 39de530e..ff034ded 100644
--- a/libsrc/interface/nginterface.cpp
+++ b/libsrc/interface/nginterface.cpp
@@ -109,7 +109,7 @@ namespace netgen
 
   // global variable mesh (should not be used in libraries)
   AutoPtr<Mesh> mesh;
-  NetgenGeometry * ng_geometry = new NetgenGeometry;
+  NetgenGeometry * ng_geometry = NULL; // new NetgenGeometry;
 
   // extern NetgenGeometry * ng_geometry;
   // extern AutoPtr<Mesh> mesh;