diff --git a/Combinatorial_map/include/CGAL/Cell_attribute.h b/Combinatorial_map/include/CGAL/Cell_attribute.h
index 7cd6c2e311f..ce35d7ce44c 100644
--- a/Combinatorial_map/include/CGAL/Cell_attribute.h
+++ b/Combinatorial_map/include/CGAL/Cell_attribute.h
@@ -140,11 +140,11 @@ namespace CGAL {
       --mrefcounting; 
     }
 
-  public:
     /// Get the reference counting.
     unsigned int get_nb_refs() const
     { return mrefcounting; }
 
+  public:
     void * for_compact_container() const 
     { return vp; }
     void * & for_compact_container()       
diff --git a/Combinatorial_map/include/CGAL/Cell_iterators.h b/Combinatorial_map/include/CGAL/Cell_iterators.h
index 71958a69c4b..a9a38c1e98c 100644
--- a/Combinatorial_map/include/CGAL/Cell_iterators.h
+++ b/Combinatorial_map/include/CGAL/Cell_iterators.h
@@ -112,10 +112,7 @@ namespace CGAL {
     CMap_cell_iterator(const Self& aiterator):
       Ite(aiterator),
       mcell_mark_number(aiterator.mcell_mark_number)
-    {
-      this->mmap->share_a_mark(this->mmark_number);
-      this->mmap->share_a_mark(this->mcell_mark_number);
-    }
+    { this->mmap->share_a_mark(this->mcell_mark_number); }
 
     /// Assignment operator.
     Self& operator=(const Self& aiterator)
@@ -123,7 +120,6 @@ namespace CGAL {
       if (this != &aiterator)
       {
         Ite::operator=(aiterator);
-        this->mmap->share_a_mark(this->mmark_number);
         this->mmap->share_a_mark(mcell_mark_number);
       }
       return *this;
@@ -205,7 +201,7 @@ namespace CGAL {
       mmark_number(amap.get_new_mark())
     {
       CGAL_static_assertion( (boost::is_same<typename Ite::Basic_iterator,
-                              Tag_true>::value) );
+                              Tag_true>::value) );      
       CGAL_assertion(amap.is_whole_map_unmarked(mmark_number));
       mark_cell<Map,i,dim>(amap, adart, mmark_number);
     }