diff --git a/Stackage/Config.hs b/Stackage/Config.hs
index d83b4ec9..400e5a6b 100644
--- a/Stackage/Config.hs
+++ b/Stackage/Config.hs
@@ -468,7 +468,7 @@ convertGithubUser x =
     fromMaybe x $ Map.lookup (map toLower x) pairs
   where
     pairs = Map.fromList
-        [ ("diagrams",     "byorgey")
+        [ ("diagrams",     "diagrams/Core")
         , ("yesodweb",     "snoyberg")
         , ("fpco",         "snoyberg")
         , ("faylang",      "bergmark")