diff --git a/docs/source/command_line.rst b/docs/source/command_line.rst
index 79dd68a84b28..98c966a33854 100644
--- a/docs/source/command_line.rst
+++ b/docs/source/command_line.rst
@@ -1159,7 +1159,7 @@ format into the specified directory.
 Enabling incomplete/experimental features
 *****************************************
 
-.. option:: --enable-incomplete-feature {PreciseTupleTypes,InlineTypedDict}
+.. option:: --enable-incomplete-feature {PreciseTupleTypes,InlineTypedDict,TypeForm}
 
     Some features may require several mypy releases to implement, for example
     due to their complexity, potential for backwards incompatibility, or
@@ -1214,6 +1214,9 @@ List of currently incomplete/experimental features:
      def test_values() -> {"int": int, "str": str}:
          return {"int": 42, "str": "test"}
 
+* ``TypeForm``: this feature enables ``TypeForm``, as described in
+  `PEP 747 – Annotating Type Forms <https://peps.python.org/pep-0747/>_`.
+
 
 Miscellaneous
 *************