diff --git a/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h b/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
index f4cd82f12d1..0ffcca179cc 100644
--- a/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
+++ b/Mesh_2/include/CGAL/Mesh_2/Mesh_global_optimizer_2.h
@@ -352,7 +352,7 @@ private:
       sum += CGAL::sqrt(*it);
 
 #ifdef CGAL_MESH_2_OPTIMIZER_VERBOSE
-    sum_moves_ = sum/big_moves_.size();
+    sum_moves_ = sum/FT(big_moves_.size());
 #endif
 
     return ( sum/FT(big_moves_.size()) < convergence_ratio_ );
diff --git a/Mesh_2/include/CGAL/Mesh_2/Mesh_sizing_field.h b/Mesh_2/include/CGAL/Mesh_2/Mesh_sizing_field.h
index 098e8b4c5ba..94236ba7ea0 100644
--- a/Mesh_2/include/CGAL/Mesh_2/Mesh_sizing_field.h
+++ b/Mesh_2/include/CGAL/Mesh_2/Mesh_sizing_field.h
@@ -169,7 +169,7 @@ private:
     typename Tr::Edge_circulator end = ec;
 
     FT sum_len(0.);
-    FT nb = 0.;
+    unsigned int nb = 0;
     do
     {
       Edge e = *ec;
@@ -187,7 +187,7 @@ private:
     while(++ec != end);
     // nb == 0 could happen if there is an isolated point.
     if( 0 != nb )
-      return sum_len/nb;
+      return sum_len/FT(nb);
     else
      // Use outside faces to compute size of point
       return 1.;//todo