diff --git a/countdown-numbers-game.cabal b/countdown-numbers-game.cabal
--- a/countdown-numbers-game.cabal
+++ b/countdown-numbers-game.cabal
@@ -1,5 +1,5 @@
 Name:                countdown-numbers-game
-Version:             0.0
+Version:             0.0.0.1
 Synopsis:            Solve problems from the number round of the Countdown game show
 Description:
   Solver for the numbers round of the Countdown game show:
@@ -38,7 +38,7 @@
   Makefile
 
 Source-Repository this
-  Tag:         0.0
+  Tag:         0.0.0.1
   Type:        darcs
   Location:    https://hub.darcs.net/thielema/countdown-numbers-game
 
diff --git a/test/Test/Utility.hs b/test/Test/Utility.hs
--- a/test/Test/Utility.hs
+++ b/test/Test/Utility.hs
@@ -85,7 +85,7 @@
       (Solve.Sum posA negA, Solve.Sum posB negB) ->
          Solve.SubExpr $
          Solve.Sum
-            (mergyLeftByNE (<) posA negB) 
+            (mergeLeftByNE (<) posA negB) 
             (ListHT.mergeBy (<) negA $ NonEmpty.flatten posB)
 
 sumFromSubExpr :: Solve.SubExpr Solve.Sum -> Solve.Sum
@@ -121,7 +121,7 @@
          Solve.SubExpr $ singletonSum $
          Solve.SubExpr $
             Solve.Product
-               (mergyLeftByNE (<) normA recB)
+               (mergeLeftByNE (<) normA recB)
                (ListHT.mergeBy (<) recA $ NonEmpty.flatten normB)
 
 productFromSubExpr :: Solve.SubExpr Solve.Sum -> Solve.Product
@@ -145,9 +145,9 @@
    then NonEmpty.Cons x $ ListHT.mergeBy lt xs (y:ys)
    else NonEmpty.Cons y $ ListHT.mergeBy lt (x:xs) ys
 
-mergyLeftByNE ::
+mergeLeftByNE ::
    (a -> a -> Bool) -> NonEmpty.T [] a -> [a] -> NonEmpty.T [] a
-mergyLeftByNE lt xt@(NonEmpty.Cons x xs) yt =
+mergeLeftByNE lt xt@(NonEmpty.Cons x xs) yt =
    case yt of
       [] -> xt
       y:ys ->