diff --git a/Include/warnings.h b/Include/warnings.h
index c84cb9f..82abb11 100644
--- a/Include/warnings.h
+++ b/Include/warnings.h
@@ -4,7 +4,9 @@
 extern "C" {
 #endif
 
+#ifndef Py_LIMITED_API
 PyAPI_FUNC(PyObject*) _PyWarnings_Init(void);
+#endif
 
 PyAPI_FUNC(int) PyErr_WarnEx(PyObject *, const char *, Py_ssize_t);
 PyAPI_FUNC(int) PyErr_WarnFormat(PyObject *, Py_ssize_t, const char *, ...);
@@ -12,7 +14,9 @@
                                     const char *, PyObject *);
 
 /* DEPRECATED: Use PyErr_WarnEx() instead. */
+#ifndef Py_LIMITED_API
 #define PyErr_Warn(category, msg) PyErr_WarnEx(category, msg, 1)
+#endif
 
 #ifdef __cplusplus
 }