diff --git a/tutorial/t9.geo b/tutorial/t9.geo
index 0f67e1966e5fe595823041121d35111e62270bdd..d9c34517368d4f7ee2e9feb376ccdf2f35a0c418 100644
--- a/tutorial/t9.geo
+++ b/tutorial/t9.geo
@@ -57,7 +57,7 @@ Plugin(Annotate).Run ;
 // We finish by setting some view options and redrawing the scene:
 
 View[0].Light = 1;
-View[0].IntervalsType = 2;
+View[0].IntervalsType = 1;
 View[0].NbIso = 6;
 View[0].SmoothNormals = 1;