diff --git a/pontarius-xmpp.cabal b/pontarius-xmpp.cabal
index 78a5ced..0238254 100644
--- a/pontarius-xmpp.cabal
+++ b/pontarius-xmpp.cabal
@@ -49,7 +49,7 @@ Library
                , stm               -any
                , xml-types         -any
                , xml-conduit       >= 1.0
-               , xml-picklers      >= 0.2
+               , xml-picklers      >= 0.2.2
                , data-default      -any
                , stringprep        >= 0.1.5
   Exposed-modules: Network.Xmpp
diff --git a/source/Network/Xmpp.hs b/source/Network/Xmpp.hs
index d3924ac..7c7ee8b 100644
--- a/source/Network/Xmpp.hs
+++ b/source/Network/Xmpp.hs
@@ -144,6 +144,7 @@ module Network.Xmpp
   , fork
   , forkSession
   -- * Misc
+  , LangTag(..)
   , exampleParams
   ) where
 
diff --git a/source/Network/Xmpp/IM/Message.hs b/source/Network/Xmpp/IM/Message.hs
index 45b5193..770e59c 100644
--- a/source/Network/Xmpp/IM/Message.hs
+++ b/source/Network/Xmpp/IM/Message.hs
@@ -19,19 +19,19 @@ data MessageThread = MessageThread
 data MessageSubject = MessageSubject (Maybe LangTag) Text
 
 xpMessageSubject :: PU [Element] MessageSubject
-xpMessageSubject = xpElems .
+xpMessageSubject = xpUnliftElems .
                    xpWrap (\(l, s) ->  MessageSubject l s)
                           (\(MessageSubject l s) -> (l,s))
                    $ xpElem "{jabber:client}subject" xpLangTag $ xpContent xpId
 
 xpMessageBody :: PU [Element] MessageBody
-xpMessageBody = xpElems .
+xpMessageBody = xpUnliftElems .
                 xpWrap (\(l, s) ->  MessageBody l s)
                           (\(MessageBody l s) -> (l,s))
                    $ xpElem "{jabber:client}body" xpLangTag $ xpContent xpId
 
 xpMessageThread :: PU [Element] MessageThread
-xpMessageThread = xpElems
+xpMessageThread = xpUnliftElems
                   . xpWrap (\(t, p) ->  MessageThread p t)
                           (\(MessageThread p t) -> (t,p))
                    $ xpElem "{jabber:client}thread"
diff --git a/source/Network/Xmpp/Monad.hs b/source/Network/Xmpp/Monad.hs
index 5d01f74..97fcbe5 100644
--- a/source/Network/Xmpp/Monad.hs
+++ b/source/Network/Xmpp/Monad.hs
@@ -90,7 +90,7 @@ pullPickle :: PU [Node] a -> XmppConMonad a
 pullPickle p = do
     res <- unpickleElem p <$> pullElement
     case res of
-        Left e -> liftIO . Ex.throwIO $ StreamXMLError e
+        Left e -> liftIO . Ex.throwIO $ StreamXMLError (show e)
         Right r -> return r
 
 -- Pulls a stanza (or stream error) from the stream. Throws an error on a stream
diff --git a/source/Network/Xmpp/Pickle.hs b/source/Network/Xmpp/Pickle.hs
index 9937e72..04d5eee 100644
--- a/source/Network/Xmpp/Pickle.hs
+++ b/source/Network/Xmpp/Pickle.hs
@@ -70,11 +70,11 @@ right (Right r) = r
 
 unpickleElem' :: PU [Node] c -> Element -> c
 unpickleElem' p x = case unpickle (xpNodeElem p) x of
-  Left l -> error $ l ++ "\n  saw: " ++ ppElement x
+  Left l -> error $ (show l) ++ "\n  saw: " ++ ppElement x
   Right r -> r
 
 -- Given a pickler and an element, produces an object.
-unpickleElem :: PU [Node] a -> Element -> Either String a
+unpickleElem :: PU [Node] a -> Element -> Either UnpickleError a
 unpickleElem p x = unpickle (xpNodeElem p) x
 
 -- Given a pickler and an object, produces an Element.
diff --git a/source/Network/Xmpp/Stream.hs b/source/Network/Xmpp/Stream.hs
index a51114f..b91088e 100644
--- a/source/Network/Xmpp/Stream.hs
+++ b/source/Network/Xmpp/Stream.hs
@@ -33,7 +33,7 @@ streamUnpickleElem :: PU [Node] a
                    -> StreamSink a
 streamUnpickleElem p x = do
     case unpickleElem p x of
-        Left l -> throwError $ StreamXMLError l
+        Left l -> throwError $ StreamXMLError (show l)
         Right r -> return r
 
 -- This is the conduit sink that handles the stream XML events. We extend it