diff --git a/postgresql-connector.cabal b/postgresql-connector.cabal
--- a/postgresql-connector.cabal
+++ b/postgresql-connector.cabal
@@ -1,5 +1,5 @@
 name:                  postgresql-connector
-version:               0.2.2
+version:               0.2.3
 synopsis:              Initial project postgresql-connector from stack
 description:           Please see README.md
 homepage:              http://github.com/mfine/postgresql-connector
diff --git a/src/Database/PostgreSQL/Connector.hs b/src/Database/PostgreSQL/Connector.hs
--- a/src/Database/PostgreSQL/Connector.hs
+++ b/src/Database/PostgreSQL/Connector.hs
@@ -16,6 +16,7 @@
 module Database.PostgreSQL.Connector
   ( ConnectorT (..)
   , Conn (..)
+  , HasConn (..)
   , MonadConnector
   , ConnInfo (..)
   , runConnectorT