diff --git a/peps/pep-0703.rst b/peps/pep-0703.rst
index ec4bc8710..0cc4e8414 100644
--- a/peps/pep-0703.rst
+++ b/peps/pep-0703.rst
@@ -337,7 +337,7 @@ and python.org downloads. A new build configuration flag,
 ``--disable-gil`` will be added to the configure script that will build
 CPython with support for running without the global interpreter lock.
 
-When built with ``--disable-gil``, CPython will define the ``Py_NOGIL``
+When built with ``--disable-gil``, CPython will define the ``Py_GIL_DISABLED``
 macro in Python/patchlevel.h.  The ABI tag will include the letter "t"
 (for "threading").