diff --git a/src/SMESH_SWIG/ex15_cyl2geometry.py b/src/SMESH_SWIG/ex15_cyl2geometry.py
index cd592efc1..8231b0490 100644
--- a/src/SMESH_SWIG/ex15_cyl2geometry.py
+++ b/src/SMESH_SWIG/ex15_cyl2geometry.py
@@ -169,7 +169,7 @@ cpd = cpd + r_element
 # Compound
 # --------
 
-piece = RemoveExtraEdges(MakeCompound(cpd), 0)
+piece = RemoveExtraEdges(MakeCompound(cpd), True)
 
 # Ajouter la piece dans l'etude
 # -----------------------------