diff --git a/src/OCC2VTK/GEOM_VertexSource.h b/src/OCC2VTK/GEOM_VertexSource.h
index 47bf37152..6a1ef4b07 100755
--- a/src/OCC2VTK/GEOM_VertexSource.h
+++ b/src/OCC2VTK/GEOM_VertexSource.h
@@ -49,7 +49,6 @@ public:
 protected: 
   TVertexSet myVertexSet; 
  
-  virtual int ProcessRequest(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
   virtual int RequestData(vtkInformation *, vtkInformationVector **, vtkInformationVector *);
  
   GEOM_VertexSource();