diff --git a/LuaLibs/ProcessLongCut.lua b/LuaLibs/ProcessLongCut.lua
index 4c6bd97..203c83d 100644
--- a/LuaLibs/ProcessLongCut.lua
+++ b/LuaLibs/ProcessLongCut.lua
@@ -1056,7 +1056,8 @@ function ProcessLongCut.Make( Proc, nPhase, nRawId, nPartId, bCustUseBlade, nCus
             local bLastCut = ( i == 1)
             local dSal = EgtIf( bFirstCut, -dEndDist, - dEndAccDist - ( nC - i - 1) * dC)
             local dEal = EgtIf( bLastCut, -dStartDist, - dStartAccDist - ( i - 2) * dC)
-            local bChainSawOk, sErr = MakeSideFaceByChainSaw( Proc.Id, dChainSawDepth, dChainSawOverMaterial, dSal, dEal, not bFirstCut, bLastCut)
+            local bShortenStartOrEnd = EgtIf( bFront, not bFirstCut, bFirstCut)
+            local bChainSawOk, sErr = MakeSideFaceByChainSaw( Proc.Id, dChainSawDepth, dChainSawOverMaterial, dSal, dEal, bShortenStartOrEnd, bShortenStartOrEnd)
             if not bChainSawOk then return false, sErr end
          end
       end