diff --git a/src/ChFi3d/ChFi3d_Builder_6.cxx b/src/ChFi3d/ChFi3d_Builder_6.cxx
index ddb773f27f..531a0d7073 100755
--- a/src/ChFi3d/ChFi3d_Builder_6.cxx
+++ b/src/ChFi3d/ChFi3d_Builder_6.cxx
@@ -521,12 +521,14 @@ Standard_Boolean ChFi3d_Builder::CompleteData
 {
   Handle(BRepBlend_AppFunc) TheFunc 
     = new (BRepBlend_AppFunc)(lin, Func, tolapp3d, 1.e-5);
+
+  Standard_Integer Degmax = 20, Segmax = 100;
   BRepBlend_AppSurface approx (TheFunc, 
 			       lin->Point(1).Parameter(),
 			       lin->Point(lin->NbPoints()).Parameter(),
 			       tolapp3d, 1.e-5, //tolapp2d, tolerance max
 			       tolappangle, // Contact G1 
-			       myConti);  
+			       myConti, Degmax, Segmax);  
   if (!approx.IsDone()) {
 #ifdef DEB
     cout << "Approximation non faite !!!" << endl;