diff --git a/src/Mod/Arch/ArchWindow.py b/src/Mod/Arch/ArchWindow.py
index c2f4d96b8..a9b9400ce 100644
--- a/src/Mod/Arch/ArchWindow.py
+++ b/src/Mod/Arch/ArchWindow.py
@@ -609,7 +609,8 @@ class _Window(ArchComponent.Component):
         ArchComponent.Component.__init__(self,obj)
         obj.addProperty("App::PropertyStringList","WindowParts","Arch",translate("Arch","the components of this window"))
         obj.addProperty("App::PropertyLength","HoleDepth","Arch",translate("Arch","The depth of the hole that this window makes in its host object. Keep 0 for automatic."))
-        obj.addProperty("Part::PropertyPartShape","Subvolume","Arch",translate("Arch","an optional volume to be subtracted from hosts of this window"))
+        # the following line creates problem when restoring saved files (wrongly attributes it to the window shape). Disabling for now...
+        #obj.addProperty("Part::PropertyPartShape","Subvolume","Arch",translate("Arch","an optional volume to be subtracted from hosts of this window"))
         obj.addProperty("App::PropertyLength","Width","Arch",translate("Arch","The width of this window (for preset windows only)"))
         obj.addProperty("App::PropertyLength","Height","Arch",translate("Arch","The height of this window (for preset windows only)"))
         obj.addProperty("App::PropertyVector","Normal","Arch",translate("Arch","The normal direction of this window"))