diff --git a/LuaLibs/CalcToolPath.lua b/LuaLibs/CalcToolPath.lua
index c2b57eb..c500dba 100644
--- a/LuaLibs/CalcToolPath.lua
+++ b/LuaLibs/CalcToolPath.lua
@@ -597,6 +597,7 @@ local function CalcRibsLink( nCurr, nNext, nLoopGrp, dStrand, bForceLink, vtSlic
          EgtTrimCurveStartEndAtParam( nLinkId, dParS, dParE)
          EgtSetInfo( nLinkId, KEY_TYPE, TYPE.RIB)
          EgtSetName( nLinkId, LINK_CRV)
+         EgtModifyCurveExtrusion( nLinkId, vtSlicing, GDB_RT.GLOB)
          if bInvert then EgtInvertCurve( nLinkId) end
          -- verifico se è valido
          local bValid = VerifyRibsLink( nLinkId, nCurr, nNext, dStrand, nGrpTmp)