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-rw-r--r--docs/users_guide/ghci.rst1
1 files changed, 1 insertions, 0 deletions
diff --git a/docs/users_guide/ghci.rst b/docs/users_guide/ghci.rst
index 9f63e0c50b..5fc5cd549e 100644
--- a/docs/users_guide/ghci.rst
+++ b/docs/users_guide/ghci.rst
@@ -2564,6 +2564,7 @@ commonly used commands.
be used.
.. code-block:: none
+
ghci>:set -XDataKinds -XUndecidableInstances
ghci>import GHC.TypeLits
ghci>class A a