diff --git a/Data/Generics/Uniplate/Internal/Data.hs b/Data/Generics/Uniplate/Internal/Data.hs
--- a/Data/Generics/Uniplate/Internal/Data.hs
+++ b/Data/Generics/Uniplate/Internal/Data.hs
@@ -86,7 +86,7 @@
 ---------------------------------------------------------------------
 -- GHC 7.2 and above (using unordered-containers API)
 
-(!) mp k = Map.lookupDefault (error "Could not find element") k mp
+(!) mp k = map_findWithDefault (error "Could not find element") k mp
 map_findWithDefault d k mp = fromMaybe d $ Map.lookup k mp -- in 0.2.3.0 lookupDefault is strict in the default :(
 map_fromAscList = Map.fromList
 map_keysSet = Set.fromList . Map.keys
diff --git a/LICENSE b/LICENSE
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright Neil Mitchell 2006-2012.
+Copyright Neil Mitchell 2006-2013.
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/uniplate.cabal b/uniplate.cabal
--- a/uniplate.cabal
+++ b/uniplate.cabal
@@ -1,10 +1,10 @@
 cabal-version:      >= 1.6
 build-type:         Simple
 name:               uniplate
-version:            1.6.10
+version:            1.6.11
 author:             Neil Mitchell <ndmitchell@gmail.com>
 maintainer:         Neil Mitchell <ndmitchell@gmail.com>
-copyright:          Neil Mitchell 2006-2012
+copyright:          Neil Mitchell 2006-2013
 homepage:           http://community.haskell.org/~ndm/uniplate/
 license:            BSD3
 license-file:       LICENSE