diff --git a/Include/modsupport.h b/Include/modsupport.h
index 833e33d574d..86719c6e929 100644
--- a/Include/modsupport.h
+++ b/Include/modsupport.h
@@ -15,10 +15,8 @@ extern "C" {
 #define PyArg_Parse                     _PyArg_Parse_SizeT
 #define PyArg_ParseTuple                _PyArg_ParseTuple_SizeT
 #define PyArg_ParseTupleAndKeywords     _PyArg_ParseTupleAndKeywords_SizeT
-#ifndef Py_LIMITED_API
 #define PyArg_VaParse                   _PyArg_VaParse_SizeT
 #define PyArg_VaParseTupleAndKeywords   _PyArg_VaParseTupleAndKeywords_SizeT
-#endif /* !Py_LIMITED_API */
 #define Py_BuildValue                   _Py_BuildValue_SizeT
 #define Py_VaBuildValue                 _Py_VaBuildValue_SizeT
 #else
@@ -33,18 +31,18 @@ PyAPI_FUNC(int) PyArg_Parse(PyObject *, const char *, ...);
 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 2b319ecf902..faab4df9910 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -143,6 +143,12 @@ Windows
 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.
+
 - Issue #29058: All stable API extensions added after Python 3.2 are now
   available only when Py_LIMITED_API is set to the PY_VERSION_HEX value of
   the minimum Python version supporting this API.