diff --git a/BerkeleyDB.cabal b/BerkeleyDB.cabal
--- a/BerkeleyDB.cabal
+++ b/BerkeleyDB.cabal
@@ -1,11 +1,11 @@
 name: BerkeleyDB
-version: 0.8.2
+version: 0.8.3
 license: BSD3
 license-file: LICENSE
 cabal-version: >= 1.4
 copyright: (c) 2009 Stephen Blackheath, (c) 2010 typLAB
 author: Stephen Blackheath, Erik Hesselink <erik@typlab.com>
-maintainer: http://blacksapphire.com/antispam/, typLAB <code@typlab.com>
+maintainer: http://blacksapphire.com/antispam/
 stability: beta
 synopsis: Berkeley DB binding
 description:
diff --git a/Database/Berkeley/Db.hsc b/Database/Berkeley/Db.hsc
--- a/Database/Berkeley/Db.hsc
+++ b/Database/Berkeley/Db.hsc
@@ -511,6 +511,8 @@
 dbToNum DB_UPDATE_SECONDARY = (#const DB_UPDATE_SECONDARY) -- Dbc.get, Dbc.del (internal)
 dbToNum DB_WRITECURSOR = (#const DB_WRITECURSOR)       -- Db.cursor
 dbToNum DB_WRITELOCK = (#const DB_WRITELOCK)           -- Db.cursor (internal)
+dbToNum DB_DUP = (#const DB_DUP)                       -- Db.set_flags
+dbToNum DB_DUPSORT = (#const DB_DUPSORT)               -- Db.set_flags
 
 dbOrFlags :: [DbFlag] -> Word32
 dbOrFlags flags = foldr (.|.) 0 $ map dbToNum flags