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diff --git a/docs/users_guide/exts/data_kinds.rst b/docs/users_guide/exts/data_kinds.rst
index 50816cbb53..bf99065907 100644
--- a/docs/users_guide/exts/data_kinds.rst
+++ b/docs/users_guide/exts/data_kinds.rst
@@ -15,6 +15,7 @@ system that complements kind polymorphism. It is enabled by
:extension:`DataKinds`, and described in more detail in the paper `Giving
Haskell a Promotion <https://dreixel.net/research/pdf/ghp.pdf>`__, which
appeared at TLDI 2012.
+See also :extension:`TypeData` for a more fine-grained alternative.
Motivation
----------