diff --git a/SoObjects/SOGo/SOGoGCSFolder.m b/SoObjects/SOGo/SOGoGCSFolder.m
index 814cb0e1a..9c89a6392 100644
--- a/SoObjects/SOGo/SOGoGCSFolder.m
+++ b/SoObjects/SOGo/SOGoGCSFolder.m
@@ -1121,6 +1121,7 @@ static NSArray *childRecordFields = nil;
     {
       davSQLFieldsTable = [NSMutableDictionary new];
       [davSQLFieldsTable setObject: @"c_version" forKey: @"{DAV:}getetag"];
+      [davSQLFieldsTable setObject: @"c_version" forKey: @"{http://calendarserver.org/ns/}getetag"];
       [davSQLFieldsTable setObject: @"" forKey: @"{DAV:}getcontenttype"];
       [davSQLFieldsTable setObject: @"" forKey: @"{DAV:}resourcetype"];
     }