diff --git a/Yesod/Auth/OAuth2/Github.hs b/Yesod/Auth/OAuth2/Github.hs
--- a/Yesod/Auth/OAuth2/Github.hs
+++ b/Yesod/Auth/OAuth2/Github.hs
@@ -107,7 +107,7 @@
         , ("access_token", decodeUtf8 $ accessToken token)
         ]
         ++ maybeExtra "name" (githubUserName user)
-        ++ maybeExtra "email" (githubUserPublicEmail user)
+        ++ maybeExtra "public_email" (githubUserPublicEmail user)
         ++ maybeExtra "location" (githubUserLocation user)
     }
 
diff --git a/Yesod/Auth/OAuth2/Slack.hs b/Yesod/Auth/OAuth2/Slack.hs
--- a/Yesod/Auth/OAuth2/Slack.hs
+++ b/Yesod/Auth/OAuth2/Slack.hs
@@ -1,5 +1,5 @@
 {-# LANGUAGE OverloadedStrings #-}
---
+-- |
 -- OAuth2 plugin for https://slack.com/
 --
 -- * Authenticates against slack
diff --git a/yesod-auth-oauth2.cabal b/yesod-auth-oauth2.cabal
--- a/yesod-auth-oauth2.cabal
+++ b/yesod-auth-oauth2.cabal
@@ -1,5 +1,5 @@
 name:            yesod-auth-oauth2
-version:         0.2.0
+version:         0.2.1
 license:         BSD3
 license-file:    LICENSE
 author:          Tom Streller