1 files changed, 1 insertions, 0 deletions
diff --git a/much.cabal b/much.cabal
index 9aae2a2..fb33c6d 100644
--- a/much.cabal
+++ b/much.cabal
@@ -66,6 +66,7 @@ library
                  , Codec.MIME.QuotedPrintable
                  , Codec.MIME.Type
                  , Data.Aeson.Extends
+                 , Data.Tree.Extra
   build-depends:   base
                  , aeson
                  , attoparsec