diff --git a/thyme.cabal b/thyme.cabal
index 1b83920..63e933e 100644
--- a/thyme.cabal
+++ b/thyme.cabal
@@ -83,6 +83,7 @@ library
         Data.Thyme.Format.Internal
         Data.Thyme.Format.DateFast
         Data.Thyme.Format.DateEncode
+        Data.Thyme.TrueName
     if !(flag(lens) || flag(docs))
         other-modules: Control.Lens
     build-depends: