diff --git a/Database/MongoDB.hs b/Database/MongoDB.hs
--- a/Database/MongoDB.hs
+++ b/Database/MongoDB.hs
@@ -1,9 +1,9 @@
 {- |
 Client interface to MongoDB database management system.
 
-Simple example below. Use with language extension /OvererloadedStrings/.
+Simple example below. Use with language extensions /OvererloadedStrings/ & /ExtendedDefaultRules/.
 
-> {-# LANGUAGE OverloadedStrings #-}
+> {-# LANGUAGE OverloadedStrings, ExtendedDefaultRules #-}
 >
 > import Database.MongoDB
 > import Control.Monad.Trans (liftIO)
@@ -24,16 +24,16 @@
 > clearTeams = delete (select [] "team")
 >
 > insertTeams = insertMany "team" [
->    ["name" =: u"Yankees", "home" =: ["city" =: u"New York", "state" =: u"NY"], "league" =: u"American"],
->    ["name" =: u"Mets", "home" =: ["city" =: u"New York", "state" =: u"NY"], "league" =: u"National"],
->    ["name" =: u"Phillies", "home" =: ["city" =: u"Philadelphia", "state" =: u"PA"], "league" =: u"National"],
->    ["name" =: u"Red Sox", "home" =: ["city" =: u"Boston", "state" =: u"MA"], "league" =: u"American"] ]
+>    ["name" =: "Yankees", "home" =: ["city" =: "New York", "state" =: "NY"], "league" =: "American"],
+>    ["name" =: "Mets", "home" =: ["city" =: "New York", "state" =: "NY"], "league" =: "National"],
+>    ["name" =: "Phillies", "home" =: ["city" =: "Philadelphia", "state" =: "PA"], "league" =: "National"],
+>    ["name" =: "Red Sox", "home" =: ["city" =: "Boston", "state" =: "MA"], "league" =: "American"] ]
 >
-> allTeams = rest =<< find (select [] "team") {sort = ["home.city" =: (1 :: Int)]}
+> allTeams = rest =<< find (select [] "team") {sort = ["home.city" =: 1]}
 >
-> nationalLeagueTeams = rest =<< find (select ["league" =: u"National"] "team")
+> nationalLeagueTeams = rest =<< find (select ["league" =: "National"] "team")
 >
-> newYorkTeams = rest =<< find (select ["home.state" =: u"NY"] "team") {project = ["name" =: (1 :: Int), "league" =: (1 :: Int)]}
+> newYorkTeams = rest =<< find (select ["home.state" =: "NY"] "team") {project = ["name" =: 1, "league" =: 1]}
 >
 > printDocs title docs = liftIO $ putStrLn title >> mapM_ (print . exclude ["_id"]) docs
 >
diff --git a/Database/MongoDB/Query.hs b/Database/MongoDB/Query.hs
--- a/Database/MongoDB/Query.hs
+++ b/Database/MongoDB/Query.hs
@@ -40,7 +40,7 @@
 
 import Prelude as X hiding (lookup)
 import Data.UString as U (UString, dropWhile, any, tail)
-import Data.Bson (Document, at, lookup, look, Field(..), (=:), (=?), Label, Value(String,Doc), Javascript, genObjectId)
+import Data.Bson (Document, at, valueAt, lookup, look, Field(..), (=:), (=?), Label, Value(String,Doc), Javascript, genObjectId)
 import Database.MongoDB.Internal.Protocol (Pipe, Notice(..), Request(GetMore), Reply(..), QueryOption(..), ResponseFlag(..), InsertOption(..), UpdateOption(..), DeleteOption(..), CursorId, FullCollection, Username, Password, pwKey)
 import qualified Database.MongoDB.Internal.Protocol as P (send, call, Request(Query))
 import Database.MongoDB.Internal.Util (MonadIO', loop, liftIOE, true1, (<.>))
@@ -274,7 +274,7 @@
 	db <- thisDatabase
 	docs' <- liftIO $ mapM assignId docs
 	write (Insert (db <.> col) opts docs')
-	mapM (look "_id") docs'
+	return $ map (valueAt "_id") docs'
 
 assignId :: Document -> IO Document
 -- ^ Assign a unique value to _id field if missing
diff --git a/mongoDB.cabal b/mongoDB.cabal
--- a/mongoDB.cabal
+++ b/mongoDB.cabal
@@ -1,5 +1,5 @@
 name: mongoDB
-version: 1.0.1
+version: 1.0.2
 build-type: Simple
 license: OtherLicense
 license-file: LICENSE