diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,5 +1,9 @@
 <!-- -*- Markdown -*- -->
 
+## 0.8.3.2
+
+- Export Register interface type from Query module.
+
 ## 0.8.3.1
 
 - Refactor around sub-query and its builder.
diff --git a/relational-query.cabal b/relational-query.cabal
--- a/relational-query.cabal
+++ b/relational-query.cabal
@@ -1,5 +1,5 @@
 name:                relational-query
-version:             0.8.3.1
+version:             0.8.3.2
 synopsis:            Typeful, Modular, Relational, algebraic query engine
 description:         This package contiains typeful relation structure and
                      relational-algebraic query building DSL which can
diff --git a/src/Database/Relational/Query.hs b/src/Database/Relational/Query.hs
--- a/src/Database/Relational/Query.hs
+++ b/src/Database/Relational/Query.hs
@@ -28,9 +28,10 @@
   module Database.Relational.Query.Monad.Type,
   module Database.Relational.Query.Monad.Simple,
   module Database.Relational.Query.Monad.Aggregate,
-  module Database.Relational.Query.Monad.Unique,
   module Database.Relational.Query.Monad.Restrict,
+  module Database.Relational.Query.Monad.Unique,
   module Database.Relational.Query.Monad.Assign,
+  module Database.Relational.Query.Monad.Register,
   module Database.Relational.Query.Relation,
   module Database.Relational.Query.Scalar,
   module Database.Relational.Query.Type,
@@ -71,9 +72,10 @@
 import Database.Relational.Query.Monad.Simple (QuerySimple, SimpleQuery)
 import Database.Relational.Query.Monad.Aggregate
   (QueryAggregate, AggregatedQuery, Window, over)
-import Database.Relational.Query.Monad.Unique (QueryUnique)
 import Database.Relational.Query.Monad.Restrict (Restrict)
+import Database.Relational.Query.Monad.Unique (QueryUnique)
 import Database.Relational.Query.Monad.Assign (Assign)
+import Database.Relational.Query.Monad.Register (Register)
 import Database.Relational.Query.Relation
 import Database.Relational.Query.Scalar (ScalarDegree)
 import Database.Relational.Query.Type hiding