diff --git a/src/Mod/Part/App/AppPart.cpp b/src/Mod/Part/App/AppPart.cpp
index 12fa88686..c771af7d6 100644
--- a/src/Mod/Part/App/AppPart.cpp
+++ b/src/Mod/Part/App/AppPart.cpp
@@ -298,7 +298,7 @@ PyMODINIT_FUNC initPart()
 
     // General
     Base::Reference<ParameterGrp> hGenPGrp = hPartGrp->GetGroup("General");
-    if (hGenPGrp->GetBool("LineOld", true)) {
+    if (hGenPGrp->GetBool("LineOld", false)) {
         Base::Interpreter().addType(&Part::LinePy           ::Type,partModule,"_Line");
         Base::Interpreter().addType(&Part::LinePyOld        ::Type,partModule,"Line");
     }
diff --git a/src/Mod/Part/App/TopoShapeEdgePyImp.cpp b/src/Mod/Part/App/TopoShapeEdgePyImp.cpp
index 654108b5a..98a627c38 100644
--- a/src/Mod/Part/App/TopoShapeEdgePyImp.cpp
+++ b/src/Mod/Part/App/TopoShapeEdgePyImp.cpp
@@ -701,7 +701,7 @@ Py::Object TopoShapeEdgePy::getCurve() const
                 Base::Reference<ParameterGrp> hPartGrp = App::GetApplication().GetUserParameter()
                     .GetGroup("BaseApp")->GetGroup("Preferences")->GetGroup("Mod/Part");
                 Base::Reference<ParameterGrp> hGenPGrp = hPartGrp->GetGroup("General");
-                LineOld = hGenPGrp->GetBool("LineOld", true);
+                LineOld = hGenPGrp->GetBool("LineOld", false);
             }
 
             if (LineOld) {