Issue #28496: Mark up constants 0, 1 and -1 that denote return values or
special input values as literal text.
diff --git a/Doc/c-api/int.rst b/Doc/c-api/int.rst
index 254219c..b2c5a44 100644
--- a/Doc/c-api/int.rst
+++ b/Doc/c-api/int.rst
@@ -88,7 +88,7 @@
Will first attempt to cast the object to a :c:type:`PyIntObject`, if it is not
already one, and then return its value. If there is an error, ``-1`` is
returned, and the caller should check ``PyErr_Occurred()`` to find out whether
- there was an error, or whether the value just happened to be -1.
+ there was an error, or whether the value just happened to be ``-1``.
.. c:function:: long PyInt_AS_LONG(PyObject *io)