diff --git a/ChangeLog b/ChangeLog
new file mode 100644
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1,3 @@
+v0.1.1.0
+
+	* Export data constructors for UserMapping & GroupMapping.
diff --git a/System/Linux/Namespaces.hsc b/System/Linux/Namespaces.hsc
--- a/System/Linux/Namespaces.hsc
+++ b/System/Linux/Namespaces.hsc
@@ -34,8 +34,8 @@
     , NamespaceID
     , getNamespaceID
     -- * User/Group mappings
-    , UserMapping
-    , GroupMapping
+    , UserMapping(..)
+    , GroupMapping(..)
     , writeUserMappings
     , writeGroupMappings
     ) where
diff --git a/linux-namespaces.cabal b/linux-namespaces.cabal
--- a/linux-namespaces.cabal
+++ b/linux-namespaces.cabal
@@ -1,5 +1,5 @@
 name:                linux-namespaces
-version:             0.1.0.0
+version:             0.1.1.0
 synopsis:            Create new or enter an existing linux namespaces
 description:
   This library provides bindings to the @unshare(2)@ and @setns(2)@ linux
@@ -10,9 +10,12 @@
 license-file:        LICENSE
 author:              Marios Titas <rednebΑΤgmxDΟΤcom>
 maintainer:          Marios Titas <rednebΑΤgmxDΟΤcom>
-category:            System, Filesystem
+category:            System
 build-type:          Simple
 cabal-version:       >=1.10
+
+extra-source-files:
+  ChangeLog
 
 source-repository head
   type: git