diff --git a/Min_sphere_of_spheres_d/include/CGAL/Min_sphere_of_spheres_d.h b/Min_sphere_of_spheres_d/include/CGAL/Min_sphere_of_spheres_d.h
index f7f8e896e58..67e6dc54fc0 100644
--- a/Min_sphere_of_spheres_d/include/CGAL/Min_sphere_of_spheres_d.h
+++ b/Min_sphere_of_spheres_d/include/CGAL/Min_sphere_of_spheres_d.h
@@ -67,7 +67,7 @@ namespace CGAL_MINIBALL_NAMESPACE {
     typedef const Result *Cartesian_const_iterator; // coordinate iterator
   
     class Support_iterator {
-      typedef typename std::vector<Sphere>::const_iterator It;
+      typedef typename std::vector<const Sphere*>::const_iterator It;
       It it;
   
     private:
@@ -270,7 +270,7 @@ namespace CGAL_MINIBALL_NAMESPACE {
     Min_sphere_of_spheres_d<Traits>::support_begin() {
     if (!is_up_to_date)
       update();
-    return Support_iterator(*l.begin());
+    return Support_iterator(l.begin());
   }
 
   template<class Traits>
@@ -278,7 +278,7 @@ namespace CGAL_MINIBALL_NAMESPACE {
     Min_sphere_of_spheres_d<Traits>::support_end() {
     if (!is_up_to_date)
       update();
-    return Support_iterator(*l.begin()+e);
+    return Support_iterator(l.begin()+e);
   }
 
 } // namespace CGAL_MINIBALL_NAMESPACE
diff --git a/Min_sphere_of_spheres_d/test/Min_sphere_of_spheres_d/interface_check.cpp b/Min_sphere_of_spheres_d/test/Min_sphere_of_spheres_d/interface_check.cpp
index fdd5f84d78c..6cbf9ec1074 100644
--- a/Min_sphere_of_spheres_d/test/Min_sphere_of_spheres_d/interface_check.cpp
+++ b/Min_sphere_of_spheres_d/test/Min_sphere_of_spheres_d/interface_check.cpp
@@ -170,6 +170,12 @@ void test(const int n,const FT& tol) {
   checkCondition(ms2.is_valid(),"Minsphere not valid.");
   compare<D,Min_sphere,FT>(tol,ms1,ms2,get_is_exact_tag(tol));
 
+  cout << "  support points..." << endl;
+  typename Min_sphere::Support_iterator sbegin = ms2.support_begin();
+  typename Min_sphere::Support_iterator send = ms2.support_end();
+  for (typename Min_sphere::Support_iterator s = sbegin; s != send; ++s) *s;
+  cout << endl;
+
   cout << " default constructor and insert()..." << endl;
   Min_sphere  ms3;
   ms3.insert(S.begin(),S.end());