diff --git a/Data/TrieMap.hs b/Data/TrieMap.hs
--- a/Data/TrieMap.hs
+++ b/Data/TrieMap.hs
@@ -63,6 +63,7 @@
 	-- * Conversion
 	elems,
 	keys,
+	keysSet,
 	assocs,
 	-- ** Lists
 	fromList,
diff --git a/TrieMap.cabal b/TrieMap.cabal
--- a/TrieMap.cabal
+++ b/TrieMap.cabal
@@ -1,5 +1,5 @@
 name:		     TrieMap
-version:             0.6.0
+version:             0.6.1
 tested-with:	     GHC
 category:            Algorithms
 synopsis:	     Automatic type inference of generalized tries.