diff --git a/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2l/Surface_point_2l.h b/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2l/Surface_point_2l.h
index b0c82ec7e9c..2b7db5cdbe6 100644
--- a/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2l/Surface_point_2l.h
+++ b/Curved_kernel_via_analysis_2/include/CGAL/Curved_kernel_via_analysis_2l/Surface_point_2l.h
@@ -363,7 +363,7 @@ public:
                 x = NiX::to_double(this->x()); // TODO replace by CGAL::
             }
 
-            Rational bound(2e-20); // TODO correct threshold?
+            Rational bound(2e-10); // TODO correct threshold?
             // Y
             {
                 typename Curve_analysis_2::Algebraic_curve_kernel_2::