diff --git a/docs/protocol-extensions.rst b/docs/protocol-extensions.rst
index e79a86ad9..a4c34f407 100644
--- a/docs/protocol-extensions.rst
+++ b/docs/protocol-extensions.rst
@@ -141,6 +141,10 @@ For example::
 This encoding means each key event is represented by 8 or 9 printable ascii
 only bytes, for maximum robustness.
 
+To see the full mode in action, run::
+
+   kitty +kitten key_demo
+
 Support for this mode is indicated by the ``fullkbd`` boolean capability
 in the terminfo database, in case querying for it via DECQRM is inconvenient.