diff --git a/Curved_kernel/demo/Curved_kernel/demo_Lazy_line_circle.cpp b/Curved_kernel/demo/Curved_kernel/demo_Lazy_line_circle.cpp
index 3179d393eec..718b5cd0040 100644
--- a/Curved_kernel/demo/Curved_kernel/demo_Lazy_line_circle.cpp
+++ b/Curved_kernel/demo/Curved_kernel/demo_Lazy_line_circle.cpp
@@ -81,7 +81,7 @@ int main() {
 #include <CGAL/Arr_naive_point_location.h>
 #include <CGAL/IO/Dxf_variant_reader.h>
 
-typedef CGAL::Gmpq                                           NT1; 
+typedef CGAL::Quotient<CGAL::MP_Float>                       NT1; 
 //typedef CGAL::Quotient<CGAL::MP_Float> NT;
 //typedef CGAL::Lazy_exact_nt<CGAL::Gmpq>  NT;