diff --git a/CGAL_ipelets/demo/CGAL_ipelets/distance.cpp b/CGAL_ipelets/demo/CGAL_ipelets/distance.cpp
index 03e966e544c..e05025725d7 100644
--- a/CGAL_ipelets/demo/CGAL_ipelets/distance.cpp
+++ b/CGAL_ipelets/demo/CGAL_ipelets/distance.cpp
@@ -88,7 +88,7 @@ void distanceIpelet::protected_run(int fn)
   if (pt_list.end()!=it) {
     print_error_message(("More than two marks selected")); return;}
 
-  double length = sqrt( CGAL::squared_distance(p1,p2).to_double() );
+  double length = sqrt( CGAL::to_double(CGAL::squared_distance(p1,p2)) );
   char message[50];
   if (fn==0)
     sprintf(message,"Distance between marks is %f in ipe pts",length);
diff --git a/CGAL_ipelets/demo/CGAL_ipelets/hyperbolic.cpp b/CGAL_ipelets/demo/CGAL_ipelets/hyperbolic.cpp
index dcb8c6f3e88..11f6fced62e 100644
--- a/CGAL_ipelets/demo/CGAL_ipelets/hyperbolic.cpp
+++ b/CGAL_ipelets/demo/CGAL_ipelets/hyperbolic.cpp
@@ -185,10 +185,10 @@ void hyperbolicIpelet::protected_run(int fn)
     // translate so that Poincare : x^2+y^2=A
     // and selected : x^2+y^2 -2ax -2by +a^2+ b^2=C
     // look for l  so that l.Poincare + selected has zero radius
-    double a=selected.center().x().to_double()-poincare.center().x().to_double();
-    double b=selected.center().y().to_double()-poincare.center().y().to_double();
-    double C=selected.squared_radius().to_double();
-    double A=poincare.squared_radius().to_double();
+    double a=CGAL::to_double(selected.center().x())-CGAL::to_double(poincare.center().x());
+    double b=CGAL::to_double(selected.center().y())-CGAL::to_double(poincare.center().y());
+    double C=CGAL::to_double(selected.squared_radius());
+    double A=CGAL::to_double(poincare.squared_radius());
     double B=A+C-a*a-b*b;
     double delta=B*B-4*A*C;
     double l=(-B+sqrt(delta))/2/A;
@@ -205,7 +205,7 @@ void hyperbolicIpelet::protected_run(int fn)
        (p2.center().y()-p1.center().y(),p2.center().x()-p1.center().x());
     else v=p2.center()-p1.center();
     Kernel::FT sqr_length=poincare.squared_radius() / v.squared_length();
-    double length = sqrt( sqr_length.to_double());
+    double length = sqrt( CGAL::to_double(sqr_length) );
     v = Kernel::FT(length)*v;
     Point_2 q1=poincare.center()+ v;
     Point_2 q2=poincare.center()- v;