diff --git a/src/Mod/PartDesign/App/FeatureDraft.cpp b/src/Mod/PartDesign/App/FeatureDraft.cpp
index 13572887e8..d9fb8c3801 100644
--- a/src/Mod/PartDesign/App/FeatureDraft.cpp
+++ b/src/Mod/PartDesign/App/FeatureDraft.cpp
@@ -192,7 +192,7 @@ App::DocumentObjectExecReturn *Draft::execute(void)
                 BRepAdaptor_Surface adapt(TopoDS::Face(face), Standard_False);
                 Handle(Geom_Surface) sf = adapt.Surface().Surface();
                 GeomAPI_IntSS intersector(aux, sf, Precision::Confusion());
-                if (!intersector.IsDone())
+                if (!intersector.IsDone() || intersector.NbLines() < 1)
                     continue;
                 Handle(Geom_Curve) icurve = intersector.Line(1);
                 if (!icurve->IsKind(STANDARD_TYPE(Geom_Line)))