diff --git a/src/Mod/Arch/ArchSite.py b/src/Mod/Arch/ArchSite.py
index 019d8a3e83..8a0b9ddf95 100644
--- a/src/Mod/Arch/ArchSite.py
+++ b/src/Mod/Arch/ArchSite.py
@@ -463,6 +463,7 @@ class _Site:
 
     def __init__(self,obj):
 
+        obj.Proxy = self
         self.setProperties(obj)
         obj.IfcType = "Site"