diff --git a/ChangeLog b/ChangeLog
index a5e9838bf..c6352ae72 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2012-05-15  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
+
+	* OpenChange/gen-property-selectors.py: the use of the "{}" to
+	construct a set is only valid on py2.7 therefore we make use of
+	set([]) instead.
+
 2012-05-14  Wolfgang Sourdeau  <wsourdeau@inverse.ca>
 
 	* OpenChange/gen-property-selectors.py: "bannedProps" is now a
diff --git a/OpenChange/gen-property-selectors.py b/OpenChange/gen-property-selectors.py
index 3052c21bd..e30ae6104 100755
--- a/OpenChange/gen-property-selectors.py
+++ b/OpenChange/gen-property-selectors.py
@@ -106,32 +106,37 @@ extern const enum MAPITAGS MAPIStoreSupportedProperties[];
 
 # hack: some properties have multiple and incompatible types. Sometimes those
 # props are not related at all...
-bannedProps = {"PidTagBodyHtml", "PidTagFavAutosubfolders",
-               "PidTagAttachDataObj", "PidTagAclTable", "PidTagAclData",
-               "PidTagRulesTable", "PidTagRulesData", "PidTagDisableWinsock",
-               "PidTagHierarchyServer", "PidTagOfflineAddrbookEntryid",
-               "PidTagShorttermEntryidFromObject",
-               "PidTagNormalMessageSizeExtended",
-               "PidTagAssocMessageSizeExtended", "PidTagMessageSizeExtended",
-               "PidTagOabContainerGuid",
-               "PidTagOfflineAddressBookMessageClass", "PidTagScriptData",
-               "PidTagOfflineAddressBookTruncatedProperties",
-               "PidTagOfflineAddressBookContainerGuid",
-               "PidTagOfflineAddressBookDistinguishedName",
-               "PidTagOfflineAddressBookShaHash",
-               "PidTagSenderTelephoneNumber", "PidTagGatewayNeedsToRefresh",
-               "PidTagWlinkType", "PidTagWlinkFlags",
-               "PidTagWlinkGroupClsid", "PidTagWlinkGroupName",
-               "PidTagWlinkGroupHeaderID",
-               "PidTagScheduleInfoDelegatorWantsCopy", "PidTagWlinkOrdinal",
-               "PidTagWlinkSection", "PidTagWlinkCalendarColor",
-               "PidTagWlinkAddressBookEID", "PidTagWlinkFolderType",
-               "PidTagScheduleInfoDelegateNames",
-               "PidTagScheduleInfoDelegateEntryIds", 
-               "PidTagBusiness2TelephoneNumbers",
-               "PidTagHome2TelephoneNumbers",
-               "PidTagAttachDataObject", "PidTagShorttermEntryIdFromObject",
-               }
+bannedProps = set(["PidTagBodyHtml", "PidTagFavAutosubfolders",
+                   "PidTagAttachDataObj", "PidTagAclTable", "PidTagAclData",
+                   "PidTagRulesTable", "PidTagRulesData",
+                   "PidTagDisableWinsock",
+                   "PidTagHierarchyServer", "PidTagOfflineAddrbookEntryid",
+                   "PidTagShorttermEntryidFromObject",
+                   "PidTagNormalMessageSizeExtended",
+                   "PidTagAssocMessageSizeExtended",
+                   "PidTagMessageSizeExtended",
+                   "PidTagOabContainerGuid",
+                   "PidTagOfflineAddressBookMessageClass", "PidTagScriptData",
+                   "PidTagOfflineAddressBookTruncatedProperties",
+                   "PidTagOfflineAddressBookContainerGuid",
+                   "PidTagOfflineAddressBookDistinguishedName",
+                   "PidTagOfflineAddressBookShaHash",
+                   "PidTagSenderTelephoneNumber",
+                   "PidTagGatewayNeedsToRefresh",
+                   "PidTagWlinkType", "PidTagWlinkFlags",
+                   "PidTagWlinkGroupClsid", "PidTagWlinkGroupName",
+                   "PidTagWlinkGroupHeaderID",
+                   "PidTagScheduleInfoDelegatorWantsCopy",
+                   "PidTagWlinkOrdinal",
+                   "PidTagWlinkSection", "PidTagWlinkCalendarColor",
+                   "PidTagWlinkAddressBookEID", "PidTagWlinkFolderType",
+                   "PidTagScheduleInfoDelegateNames",
+                   "PidTagScheduleInfoDelegateEntryIds", 
+                   "PidTagBusiness2TelephoneNumbers",
+                   "PidTagHome2TelephoneNumbers",
+                   "PidTagAttachDataObject",
+                   "PidTagShorttermEntryIdFromObject",
+                   ])
 
 def ParseExchangeH(names, lines):
     state = 0