Index: Include/unicodeobject.h
===================================================================
--- Include/unicodeobject.h	(Revision 88195)
+++ Include/unicodeobject.h	(Arbeitskopie)
@@ -395,8 +395,12 @@
 #define SSTATE_INTERNED_MORTAL 1
 #define SSTATE_INTERNED_IMMORTAL 2
 
+#ifndef Py_LIMITED_API
 #define PyUnicode_Check(op) \
                  PyType_FastSubclass(Py_TYPE(op), Py_TPFLAGS_UNICODE_SUBCLASS)
+#else
+#define PyUnicode_Check(op) PyType_IsSubtype(Py_TYPE(op), &PyUnicode_Type)
+#endif
 #define PyUnicode_CheckExact(op) (Py_TYPE(op) == &PyUnicode_Type)
 
 /* Fast access macros */