diff --git a/OpenChange/gen-property-selectors.py b/OpenChange/gen-property-selectors.py
index a8539f3f9..c40a48534 100755
--- a/OpenChange/gen-property-selectors.py
+++ b/OpenChange/gen-property-selectors.py
@@ -104,7 +104,7 @@ extern const enum MAPITAGS MAPIStoreSupportedProperties[];
 
 # hack: some properties have multiple and incompatible types. Sometimes those
 # props are not related at all...
-bannedProps = { "PrBodyHtml": True }
+bannedProps = { "PrBodyHtml": True, "PrFavAutosubfolders": True }
 
 def ParseExchangeH(names, lines):
     state = 0