diff --git a/src/Mod/BIM/ArchWindow.py b/src/Mod/BIM/ArchWindow.py
index cede3dc78e..911b9bc4bb 100644
--- a/src/Mod/BIM/ArchWindow.py
+++ b/src/Mod/BIM/ArchWindow.py
@@ -61,7 +61,6 @@ __url__    = "https://www.freecad.org"
 
 # presets
 WindowPartTypes = ["Frame","Solid panel","Glass panel","Louvre"]
-AllowedHosts =    ["Wall","Structure","Roof"]
 WindowOpeningModes = ["None","Arc 90","Arc 90 inv","Arc 45","Arc 45 inv","Arc 180",
                       "Arc 180 inv","Triangle","Triangle inv","Sliding","Sliding inv"]
 WindowPresets = ArchWindowPresets.WindowPresets
diff --git a/src/Mod/BIM/bimcommands/BimWindow.py b/src/Mod/BIM/bimcommands/BimWindow.py
index 5b95b8f10b..d492b0aa29 100644
--- a/src/Mod/BIM/bimcommands/BimWindow.py
+++ b/src/Mod/BIM/bimcommands/BimWindow.py
@@ -30,6 +30,7 @@ import FreeCADGui
 QT_TRANSLATE_NOOP = FreeCAD.Qt.QT_TRANSLATE_NOOP
 translate = FreeCAD.Qt.translate
 PARAMS = FreeCAD.ParamGet("User parameter:BaseApp/Preferences/Mod/BIM")
+ALLOWEDHOSTS = ["Wall","Structure","Roof"]
 
 
 class Arch_Window:
@@ -214,7 +215,7 @@ class Arch_Window:
                 host = self.baseFace[0]
             elif obj:
                 host = obj
-            if Draft.getType(host) in AllowedHosts:
+            if Draft.getType(host) in ALLOWEDHOSTS:
                 FreeCADGui.doCommand("win.Hosts = [FreeCAD.ActiveDocument." + host.Name + "]")
                 siblings = host.Proxy.getSiblings(host)
                 for sibling in siblings: