diff --git a/CalcPocketing.cpp b/CalcPocketing.cpp
index 726cf59..02f7c53 100644
--- a/CalcPocketing.cpp
+++ b/CalcPocketing.cpp
@@ -2416,6 +2416,9 @@ CalcCircleSpiral( const Point3d& ptCen, const Vector3d& vtN, double dOutRad, dou
 
   // assegno la Feed
    AssignFeedSpiralOpt( 0, PockParams, pMCrv) ;
+
+  // assegno proprietà di riconoscimento
+   pMCrv->SetTempProp( TEMP_PROP_OPT_CIRCLE, 0) ;
    return true ;
 }