diff --git a/src/GeomFill/GeomFill_SectionPlacement.cxx b/src/GeomFill/GeomFill_SectionPlacement.cxx
index a2616b4b1d..8d39b1c3cd 100644
--- a/src/GeomFill/GeomFill_SectionPlacement.cxx
+++ b/src/GeomFill/GeomFill_SectionPlacement.cxx
@@ -276,6 +276,8 @@ GeomFill_SectionPlacement(const Handle(GeomFill_LocationLaw)& L,
 	      
 	      Standard_Integer NbLocalPnts = 10;
 	      Standard_Integer NbPnts = (NbKnots-1) * NbLocalPnts;
+	      if (NbPnts < 0)
+	        NbPnts = 0;
 	      if (I1 != I2)
 		NbPnts += NbLocalPnts;
 	      if (I3 != I4 && first < BC->Knot(I3))