diff --git a/LuaLibs/CalcToolPath.lua b/LuaLibs/CalcToolPath.lua
index 8067801..722920a 100644
--- a/LuaLibs/CalcToolPath.lua
+++ b/LuaLibs/CalcToolPath.lua
@@ -1735,7 +1735,7 @@ local function CalcRibsToolPath( vEntIds, nRibsGrp, nTpathGrpId, LayerParams)
          local bLoopRib = EgtGetInfo( tabRibs[i][1], KEY_LOOP_RIB, 'b') or false
          for j = 1, #tabRibs[i] - 1 do
             local bUserLink = ( EgtGetInfo( tabRibs[i][j], KEY_RIBS_USER_LINK, 'b') or false) and ( EgtGetInfo( tabRibs[i][j+1], KEY_RIBS_USER_LINK, 'b') or false)
-            local bSplitAfterTrim = EgtGetInfo( tabRibs[i][1], KEY_SPLIT_AFTER_TRIM, 'b') or false
+            local bSplitAfterTrim = ( EgtGetInfo( tabRibs[i][j], KEY_SPLIT_AFTER_TRIM, 'b') or false) and ( EgtGetInfo( tabRibs[i][j+1], KEY_SPLIT_AFTER_TRIM, 'b') or false)
             local nOrig1 = EgtGetInfo( tabRibs[i][j], KEY_ORIGINAL_RIB, 'i') or 0
             local nOrig2 = EgtGetInfo( tabRibs[i][j + 1], KEY_ORIGINAL_RIB, 'i') or 0
             local nSplitId1 = EgtGetInfo( tabRibs[i][j], KEY_SPLIT_ID, 'i') or 0