diff --git a/docs/source/user/error-codes.rst b/docs/source/user/error-codes.rst
index c8b46c1..c8b35cd 100644
--- a/docs/source/user/error-codes.rst
+++ b/docs/source/user/error-codes.rst
@@ -111,6 +111,8 @@ generates its own :term:`error code`\ s for ``pyflakes``:
 +------+---------------------------------------------------------------------+
 | F841 | local variable ``name`` is assigned to but never used               |
 +------+---------------------------------------------------------------------+
+| F842 | local variable ``name`` is annotated but never used                 |
++------+---------------------------------------------------------------------+
 +------+---------------------------------------------------------------------+
 | F901 | ``raise NotImplemented`` should be ``raise NotImplementedError``    |
 +------+---------------------------------------------------------------------+