diff --git a/packed-data.cabal b/packed-data.cabal
--- a/packed-data.cabal
+++ b/packed-data.cabal
@@ -5,7 +5,7 @@
 -- see: https://github.com/sol/hpack
 
 name:           packed-data
-version:        0.1.0.2
+version:        0.1.0.3
 description:    Build, traverse and deserialise packed data in Haskell
 category:       Data
 homepage:       https://github.com/Arthi-chaud/packed-haskell#readme
diff --git a/src/Data/Packed.hs b/src/Data/Packed.hs
--- a/src/Data/Packed.hs
+++ b/src/Data/Packed.hs
@@ -20,7 +20,9 @@
     isolate,
     fromPacked,
     unsafeToPacked,
+    unsafeToPacked',
     unsafeCastPacked,
+    getPtr,
 
     -- * PackedReader
     PackedReader,
@@ -33,7 +35,7 @@
     PackingFlag (..),
 
     -- * Utils
-    FieldSize,
+    FieldSize (..),
     getFieldSizeFromPacked,
     Skippable (..),
 ) where