diff --git a/CHANGELOG.md b/CHANGELOG.md
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+# 0.0.4.1
+
+- Fixed spelling error in documentation.
+- Added the haddock `not-home` marker to `Data.MonoidMap.Internal`.
+
 # 0.0.4.0
 
 - Added the `fromMapWith` function to `MonoidMap`.
diff --git a/README.md b/README.md
--- a/README.md
+++ b/README.md
@@ -59,7 +59,7 @@
 | `Nothing`        | Map `m` has _no_ entry for key `k`.                         |
 | `Just mempty`    | Map `m` has an entry for key `k`, but the value is _empty_. |
 
-In constrast, the [`MonoidMap`] type provides a single, _canonical_ representation for null or empty values, according to the following conceptual mapping:
+In contrast, the [`MonoidMap`] type provides a single, _canonical_ representation for null or empty values, according to the following conceptual mapping:
 
 | `Map.lookup k m`        | ⟼ | `MonoidMap.get k m`     |
 |:------------------------|---|:------------------------|
diff --git a/components/monoidmap-internal/Data/MonoidMap/Internal.hs b/components/monoidmap-internal/Data/MonoidMap/Internal.hs
--- a/components/monoidmap-internal/Data/MonoidMap/Internal.hs
+++ b/components/monoidmap-internal/Data/MonoidMap/Internal.hs
@@ -1,5 +1,6 @@
 {-# OPTIONS_GHC -fno-warn-redundant-constraints #-}
 {-# OPTIONS_GHC -fno-warn-unused-imports #-}
+{-# OPTIONS_HADDOCK not-home #-}
 {- HLINT ignore "Avoid lambda" -}
 {- HLINT ignore "Avoid lambda using `infix`" -}
 {- HLINT ignore "Redundant bracket" -}
diff --git a/components/monoidmap/Data/MonoidMap.hs b/components/monoidmap/Data/MonoidMap.hs
--- a/components/monoidmap/Data/MonoidMap.hs
+++ b/components/monoidmap/Data/MonoidMap.hs
@@ -291,7 +291,7 @@
 -- | @                       |                                            |
 -- +-------------------------+--------------------------------------------+
 --
--- In constrast, the 'MonoidMap' type provides a single, /canonical/
+-- In contrast, the 'MonoidMap' type provides a single, /canonical/
 -- representation for null or empty values, according to the following
 -- conceptual mapping:
 --
diff --git a/monoidmap.cabal b/monoidmap.cabal
--- a/monoidmap.cabal
+++ b/monoidmap.cabal
@@ -1,6 +1,6 @@
 cabal-version:  3.0
 name:           monoidmap
-version:        0.0.4.0
+version:        0.0.4.1
 bug-reports:    https://github.com/jonathanknowles/monoidmap/issues
 license:        Apache-2.0
 license-file:   LICENSE