diff --git a/hist-pl-fusion.cabal b/hist-pl-fusion.cabal
--- a/hist-pl-fusion.cabal
+++ b/hist-pl-fusion.cabal
@@ -1,5 +1,5 @@
 name:               hist-pl-fusion
-version:            0.5.0
+version:            0.5.1
 synopsis:           Merging historical dictionary with PoliMorf
 description:
     The library provides functions for merging historical dictionary
diff --git a/src/NLP/HistPL/Fusion.hs b/src/NLP/HistPL/Fusion.hs
--- a/src/NLP/HistPL/Fusion.hs
+++ b/src/NLP/HistPL/Fusion.hs
@@ -12,6 +12,8 @@
 , IsBase
 
 -- * Dictionary
+, BaseDAWG
+, FormDAWG
 -- ** Bilateral
 , Bila (..)
 , mkBila