diff --git a/nglib/nglib.cpp b/nglib/nglib.cpp
index 332ce73b..4e189c86 100644
--- a/nglib/nglib.cpp
+++ b/nglib/nglib.cpp
@@ -29,6 +29,7 @@ namespace netgen {
    extern void MeshFromSpline2D (SplineGeometry2d & geometry,
                                  shared_ptr<Mesh> & mesh, 
                                  MeshingParameters & mp);
+   extern void Optimize2d(Mesh & mesh, MeshingParameters & mp);
 }
 
 
@@ -734,6 +735,18 @@ namespace nglib
    }
 
 
+   DLL_HEADER Ng_Result Ng_OptimizeMesh_2D(Ng_Mesh *mesh, Ng_Meshing_Parameters * mp)
+   {
+       Mesh * m = (Mesh*)mesh;
+
+       mp->Transfer_Parameters();
+
+       m->CalcLocalH(mparam.grading);
+
+       Optimize2d(*m, mparam);
+
+       return NG_OK;
+   }
 
 
    DLL_HEADER void Ng_HP_Refinement (Ng_Geometry_2D * geom,
diff --git a/nglib/nglib.h b/nglib/nglib.h
index 63f457ff..eb8c312d 100644
--- a/nglib/nglib.h
+++ b/nglib/nglib.h
@@ -674,8 +674,6 @@ DLL_HEADER Ng_Result Ng_GenerateMesh_2D (Ng_Geometry_2D * geom,
                                          Ng_Meshing_Parameters * mp);
  
 // functions added to make Optimize2d mesh accessible from nglib
-DLL_HEADER void Ng_AddTriangle_2D(Ng_Mesh * mesh, int pi1, int pi2, int pi3, int matnum = 1);
-
 DLL_HEADER Ng_Result Ng_OptimizeMesh_2D(Ng_Mesh *mesh, Ng_Meshing_Parameters * mp);