diff --git a/LuaLibs/CalcPaths.lua b/LuaLibs/CalcPaths.lua
index e1fbb9c..c4bcb68 100644
--- a/LuaLibs/CalcPaths.lua
+++ b/LuaLibs/CalcPaths.lua
@@ -797,7 +797,6 @@ local function ReorderExtraShells( nPathGrp, dStrand, vPtStart)
       -- se curva è chiusa
       if EgtCurveIsClosed( nCurrCrv) then
          ModifyStartPoint( nCurrCrv, vPtStart)
-         EgtSetInfo( nCurrCrv, KEY_CLOSED_EXTRA_SHELL, 1)
          -- setto a nil per ripartire subito con curva successiva
          nCurrCrv = nil
       end