diff --git a/Include/modsupport.h b/Include/modsupport.h
index 829aaf8..6d4b6dc 100644
--- a/Include/modsupport.h
+++ b/Include/modsupport.h
@@ -29,18 +29,18 @@
 PyAPI_FUNC(int) PyArg_ParseTuple(PyObject *, const char *, ...);
 PyAPI_FUNC(int) PyArg_ParseTupleAndKeywords(PyObject *, PyObject *,
                                                   const char *, char **, ...);
+PyAPI_FUNC(int) PyArg_VaParse(PyObject *, const char *, va_list);
+PyAPI_FUNC(int) PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
+                                                  const char *, char **, va_list);
+#endif
 PyAPI_FUNC(int) PyArg_ValidateKeywordArguments(PyObject *);
 PyAPI_FUNC(int) PyArg_UnpackTuple(PyObject *, const char *, Py_ssize_t, Py_ssize_t, ...);
 PyAPI_FUNC(PyObject *) Py_BuildValue(const char *, ...);
 PyAPI_FUNC(PyObject *) _Py_BuildValue_SizeT(const char *, ...);
-#endif
+
 #ifndef Py_LIMITED_API
 PyAPI_FUNC(int) _PyArg_NoKeywords(const char *funcname, PyObject *kw);
 PyAPI_FUNC(int) _PyArg_NoPositional(const char *funcname, PyObject *args);
-
-PyAPI_FUNC(int) PyArg_VaParse(PyObject *, const char *, va_list);
-PyAPI_FUNC(int) PyArg_VaParseTupleAndKeywords(PyObject *, PyObject *,
-                                                  const char *, char **, va_list);
 #endif
 PyAPI_FUNC(PyObject *) Py_VaBuildValue(const char *, va_list);
 
diff --git a/Misc/NEWS b/Misc/NEWS
index 19d90af..eb79d5c 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -37,6 +37,15 @@
   leading dots could match related hostnames again (e.g. .b.c matches a.b.c).
   Patch by Milan Oberkirch.
 
+C API
+-----
+
+- Issue #29083: Fixed the declaration of some public API functions.
+  PyArg_VaParse() and PyArg_VaParseTupleAndKeywords() were not available in
+  limited API.  PyArg_ValidateKeywordArguments(), PyArg_UnpackTuple() and
+  Py_BuildValue() were not available in limited API of version < 3.3 when
+  PY_SSIZE_T_CLEAN is defined.
+
 
 What's New in Python 3.5.3?
 ===========================