diff --git a/src/Mod/Part/Gui/DlgProjectionOnSurface.cpp b/src/Mod/Part/Gui/DlgProjectionOnSurface.cpp
index eb12092e7f..bff431b6b6 100644
--- a/src/Mod/Part/Gui/DlgProjectionOnSurface.cpp
+++ b/src/Mod/Part/Gui/DlgProjectionOnSurface.cpp
@@ -784,8 +784,8 @@ TopoDS_Wire PartGui::DlgProjectionOnSurface::sort_and_heal_wire(const std::vecto
   {
     auto aShape = TopoDS::Wire(aWireWireHandle->Value(it));
     ShapeFix_Wire aWireRepair(aShape, iFaceToProject, 0.0001);
-    aWireRepair.FixAddCurve3dMode();
-    aWireRepair.FixAddPCurveMode();
+    aWireRepair.FixAddCurve3dMode() = 1;
+    aWireRepair.FixAddPCurveMode() = 1;
     aWireRepair.Perform();
     //return aWireRepair.Wire();
     ShapeFix_Wireframe aWireFramFix(aWireRepair.Wire());