diff --git a/indexation.cabal b/indexation.cabal
--- a/indexation.cabal
+++ b/indexation.cabal
@@ -1,7 +1,7 @@
 name:
   indexation
 version:
-  0.2.0.3
+  0.2.1
 category:
   Data
 synopsis:
@@ -46,13 +46,13 @@
     Indexation.IndexTable
     Indexation.IO
     Indexation.Potoki.Produce
+    Indexation.Potoki.Transform
   other-modules:
     Indexation.Cereal.Get
     Indexation.Cereal.Put
     Indexation.Constructors.EntityTable
     Indexation.Folds
     Indexation.Instances.Cereal
-    Indexation.Potoki.Transform
     Indexation.Prelude
     Indexation.Types
     Indexation.Vector
diff --git a/library/Indexation/IO.hs b/library/Indexation/IO.hs
--- a/library/Indexation/IO.hs
+++ b/library/Indexation/IO.hs
@@ -1,5 +1,7 @@
 module Indexation.IO
 (
+  createIndexer,
+  serializeIndexerToFile,
   indexProduceToFiles,
   readEntitiesAmountFromEntityTableFile,
   readEntityTableFromFile,