diff --git a/Mesh_3/include/CGAL/Mesh_3/C3T3_helpers.h b/Mesh_3/include/CGAL/Mesh_3/C3T3_helpers.h
index ef7e7a5b96c..c46fb2bcee1 100644
--- a/Mesh_3/include/CGAL/Mesh_3/C3T3_helpers.h
+++ b/Mesh_3/include/CGAL/Mesh_3/C3T3_helpers.h
@@ -1477,8 +1477,16 @@ private:
 
         c->set_facet_surface_center(i, facet_surface_center_[old_i]);
         c->set_facet_surface_center_index(i, surface_center_index_table_[old_i]);
-        //here we don't need to update mirror_facet because it's been either
-        //backuped, or unchanged
+
+        //we need to update mirror_facet when the i-th neighbor is
+        // an infinite cell
+        Cell_handle c2 = c->neighbor(i);
+        if(c3t3.triangulation().is_infinite(c2))
+        {
+          const int i2 = c2->index(c);
+          c2->set_facet_surface_center(i2, facet_surface_center_[old_i]);
+          c2->set_facet_surface_center_index(i2, surface_center_index_table_[old_i]);
+        }
       }
     }