diff --git a/vcg/simplex/face/component.h b/vcg/simplex/face/component.h
index 23b76e35..58fc36f3 100644
--- a/vcg/simplex/face/component.h
+++ b/vcg/simplex/face/component.h
@@ -471,7 +471,7 @@ template <class T> class WedgeColor4f: public WedgeColor<vcg::Color4f, T> {
   static void Name(std::vector<std::string> & name){name.push_back(std::string("WedgeColor4f"));T::Name(name);}
 };
 
-template <class T> class Color4b: public Color<vcg::Color4b, T> {
+template <class T> class Color4b: public Color<vcg::Color4b, T> { public:
   static void Name(std::vector<std::string> & name){name.push_back(std::string("Color4b"));T::Name(name);}
 };