diff --git a/LuaLibs/ProcessLapJoint.lua b/LuaLibs/ProcessLapJoint.lua
index 7630dca..09cd342 100644
--- a/LuaLibs/ProcessLapJoint.lua
+++ b/LuaLibs/ProcessLapJoint.lua
@@ -794,7 +794,7 @@ function ProcessLapJoint.IsTailFeature( Proc, b3Raw)
    -- verifico se è in coda
    local dEndDist = Proc.Box:getMin():getX() - b3Solid:getMin():getX()
    if ( dEndDist > BD.MAX_DIST_HTFEA) or bUseBHSideMill then
-      if not( BD.BH_MACHINE) and bUseBHSideMill and ( Proc.Box:getMax():getX() - b3Solid:getMin():getX()) < 400 then
+      if not( BD.BH_MACHINE) and bUseBHSideMill and ( Proc.Box:getMax():getX() - b3Solid:getMin():getX()) < 400 and b3Solid:getDimX() > BD.LEN_VERY_SHORT_PART then
          return true
       else
          return false