diff --git a/vcg/simplex/vertex/component.h b/vcg/simplex/vertex/component.h
index 02515a02..9c22d819 100644
--- a/vcg/simplex/vertex/component.h
+++ b/vcg/simplex/vertex/component.h
@@ -187,6 +187,7 @@ public:
 	template < class LeftV>
 	void ImportLocal(const LeftV  & left ) { if(LeftV::HasNormal()) N() = left.cN(); T::ImportLocal( left); }
   static bool HasNormal()   { return true; }
+  static bool HasNormalOcf() { return false; }
 	static void Name(std::vector<std::string> & name){name.push_back(std::string("Normal"));T::Name(name);}
 
 private:
@@ -327,6 +328,7 @@ public:
 	template < class LeftV>
 	void ImportLocal(const LeftV  & left ) { if(LeftV::HasColor()) C() = left.cC();  T::ImportLocal( left); }
   static bool HasColor()   { return true; }
+  static bool HasColorOcf() { return true; }
 	static void Name(std::vector<std::string> & name){name.push_back(std::string("Color"));T::Name(name);}
 
 private: