diff --git a/Include/objimpl.h b/Include/objimpl.h
index 55186b1..4176c6b 100644
--- a/Include/objimpl.h
+++ b/Include/objimpl.h
@@ -108,6 +108,13 @@
 PyAPI_FUNC(void) _PyObject_DebugDumpAddress(const void *p);
 PyAPI_FUNC(void) _PyObject_DebugCheckAddress(const void *p);
 PyAPI_FUNC(void) _PyObject_DebugMallocStats(void);
+PyAPI_FUNC(void *) _PyObject_DebugMallocApi(char api, size_t nbytes);
+PyAPI_FUNC(void *) _PyObject_DebugReallocApi(char api, void *p, size_t nbytes);
+PyAPI_FUNC(void) _PyObject_DebugFreeApi(char api, void *p);
+PyAPI_FUNC(void) _PyObject_DebugCheckAddressApi(char api, const void *p);
+PyAPI_FUNC(void *) _PyMem_DebugMalloc(size_t nbytes);
+PyAPI_FUNC(void *) _PyMem_DebugRealloc(void *p, size_t nbytes);
+PyAPI_FUNC(void) _PyMem_DebugFree(void *p);
 #define PyObject_MALLOC		_PyObject_DebugMalloc
 #define PyObject_Malloc		_PyObject_DebugMalloc
 #define PyObject_REALLOC	_PyObject_DebugRealloc