diff --git a/Include/pyport.h b/Include/pyport.h
index f35d8e66152..4bc6016175a 100644
--- a/Include/pyport.h
+++ b/Include/pyport.h
@@ -39,6 +39,9 @@ Used in:  LONG_LONG
 #else
 #define Py_PROTO(x) ()
 #endif
+#ifndef Py_FPROTO
+#define Py_FPROTO(x) Py_PROTO(x)
+#endif
 
 /* typedefs for some C9X-defined synonyms for integral types.
  *