diff --git a/Include/object.h b/Include/object.h
index a9c7dda..98a6b75 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -251,6 +251,8 @@
 extern PyObject *PyObject_GetAttr Py_PROTO((PyObject *, PyObject *));
 extern int PyObject_SetAttr Py_PROTO((PyObject *, PyObject *, PyObject *));
 extern long PyObject_Hash Py_PROTO((PyObject *));
+extern int PyObject_IsTrue Py_PROTO((PyObject *));
+extern int PyCallable_Check Py_PROTO((PyObject *));
 
 /* Flag bits for printing: */
 #define Py_PRINT_RAW	1	/* No string quotes etc. */