diff --git a/docs/configuration.rst b/docs/configuration.rst
index dffcd34..6c8a0c8 100644
--- a/docs/configuration.rst
+++ b/docs/configuration.rst
@@ -146,6 +146,7 @@ If you don't want to use the default you can set a specific keyring like so:
 
 .. code:: python
 
+    # Requires the keyrings.alt package
     from keyrings.alt.file import PlaintextKeyring
     status.register('github', keyring_backend=PlaintextKeyring())