diff --git a/src/Mod/Part/App/PartFeatures.cpp b/src/Mod/Part/App/PartFeatures.cpp
index 39a5d71154c4..f1559ff4278f 100644
--- a/src/Mod/Part/App/PartFeatures.cpp
+++ b/src/Mod/Part/App/PartFeatures.cpp
@@ -548,6 +548,8 @@ Thickness::Thickness()
     Mode.setEnums(ModeEnums);
     ADD_PROPERTY_TYPE(Join,(long(0)),"Thickness",App::Prop_None,"Join type");
     Join.setEnums(JoinEnums);
+    ADD_PROPERTY_TYPE(Intersection,(false),"Thickness",App::Prop_None,"Intersection");
+    ADD_PROPERTY_TYPE(SelfIntersection,(false),"Thickness",App::Prop_None,"Self Intersection");
 }
 
 short Thickness::mustExecute() const