diff --git a/Data/Array/Vector/Algorithms/Insertion.hs b/Data/Array/Vector/Algorithms/Insertion.hs
--- a/Data/Array/Vector/Algorithms/Insertion.hs
+++ b/Data/Array/Vector/Algorithms/Insertion.hs
@@ -16,6 +16,7 @@
        , sortBy
        , sortByBounds
        , sortByBounds'
+       , Comparison
        ) where
 
 
diff --git a/Data/Array/Vector/Algorithms/Intro.hs b/Data/Array/Vector/Algorithms/Intro.hs
--- a/Data/Array/Vector/Algorithms/Intro.hs
+++ b/Data/Array/Vector/Algorithms/Intro.hs
@@ -42,6 +42,7 @@
        , partialSort
        , partialSortBy
        , partialSortByBounds
+       , Comparison
        ) where
 
 import Control.Monad
diff --git a/Data/Array/Vector/Algorithms/Merge.hs b/Data/Array/Vector/Algorithms/Merge.hs
--- a/Data/Array/Vector/Algorithms/Merge.hs
+++ b/Data/Array/Vector/Algorithms/Merge.hs
@@ -11,7 +11,12 @@
 -- the entire sorting process to ease the amount of allocation performed in
 -- total. This is a stable sort.
 
-module Data.Array.Vector.Algorithms.Merge (sort, sortBy, sortByBounds) where
+module Data.Array.Vector.Algorithms.Merge
+       ( sort
+       , sortBy
+       , sortByBounds
+       , Comparison
+       ) where
 
 import Control.Monad.ST
 
diff --git a/Data/Array/Vector/Algorithms/Optimal.hs b/Data/Array/Vector/Algorithms/Optimal.hs
--- a/Data/Array/Vector/Algorithms/Optimal.hs
+++ b/Data/Array/Vector/Algorithms/Optimal.hs
@@ -28,6 +28,7 @@
        , sort3ByOffset
        , sort4ByIndex
        , sort4ByOffset
+       , Comparison
        ) where
 
 import Control.Monad.ST
diff --git a/Data/Array/Vector/Algorithms/TriHeap.hs b/Data/Array/Vector/Algorithms/TriHeap.hs
--- a/Data/Array/Vector/Algorithms/TriHeap.hs
+++ b/Data/Array/Vector/Algorithms/TriHeap.hs
@@ -32,7 +32,9 @@
        , heapify
        , pop
        , popTo
-       , sortHeap ) where
+       , sortHeap
+       , Comparison
+       ) where
 
 import Control.Monad
 import Control.Monad.ST
diff --git a/uvector-algorithms.cabal b/uvector-algorithms.cabal
--- a/uvector-algorithms.cabal
+++ b/uvector-algorithms.cabal
@@ -1,5 +1,5 @@
 Name:              uvector-algorithms
-Version:           0.1
+Version:           0.1.1
 License:           BSD3
 License-File:      LICENSE
 Author:            Dan Doel