diff --git a/keera-hails-reactivevalues.cabal b/keera-hails-reactivevalues.cabal
--- a/keera-hails-reactivevalues.cabal
+++ b/keera-hails-reactivevalues.cabal
@@ -7,7 +7,7 @@
 -- The package version. See the Haskell package versioning policy
 -- (http://www.haskell.org/haskellwiki/Package_versioning_policy) for
 -- standards guiding when and how versions should be incremented.
-Version:             0.2.2.0
+Version:             0.2.2.1
 
 -- A short (one-line) description of the package.
 Synopsis:            Haskell on Rails - Reactive Values
@@ -39,6 +39,8 @@
 -- A copyright notice.
 -- Copyright:
 
+Tested-with:         GHC == 7.6.3, GHC == 7.8.4, GHC == 7.10.2
+
 Category:            Development
 
 Build-type:          Simple
@@ -130,3 +132,8 @@
       tasty-hunit,
       QuickCheck,
       HUnit
+
+source-repository head
+    type: git
+    location: git://github.com/keera-studios/keera-hails
+    subdir: keera-hails-reactivevalues
diff --git a/src/Data/ReactiveValue.hs b/src/Data/ReactiveValue.hs
--- a/src/Data/ReactiveValue.hs
+++ b/src/Data/ReactiveValue.hs
@@ -227,7 +227,7 @@
 -- | To facilitate creating RW reactive values from monadic actions, pairs
 -- of a getter and a setter are also RVs.
 instance ReactiveValueWrite (a -> m b) a m => ReactiveValueWrite (m a, a -> m b) a m where
-  reactiveValueWrite (_, f) v = reactiveValueWrite f v
+  reactiveValueWrite (_, f) = reactiveValueWrite f
 
 -- $readwritervs
 --
@@ -311,7 +311,7 @@
   ReactiveFieldRead (FieldGetter m a) (FieldNotifier m a)
 
 -- | A Write-Only RV.
-data ReactiveFieldWrite m a =
+newtype ReactiveFieldWrite m a =
   ReactiveFieldWrite (FieldSetter m a)
 
 -- | A Read-Write RV.
@@ -378,6 +378,7 @@
  where notifier _ = return ()
        getter     = return e
 
+{-# ANN liftR "HLint: ignore Use fmap" #-}
 -- | Lift a transformation onto a RV. Note that this creates a new
 -- RV, it does not modify the existing RV.
 liftR :: (Monad m, ReactiveValueRead a b m) => (b -> c) -> a -> ReactiveFieldRead m c
@@ -597,7 +598,7 @@
        => a -> b -> ReactiveFieldRead m v
 lMerge = liftR2 (\a _ -> a)
 
--- | Right merge (give priority to the value on the left)
+-- | Right merge (give priority to the value on the right)
 rMerge :: (Monad m, ReactiveValueRead a v m, ReactiveValueRead b v m)
        => a -> b -> ReactiveFieldRead m v
 rMerge = liftR2 (\_ b -> b)