diff --git a/include/rpcsvc/rstat.x b/include/rpcsvc/rstat.x
index a71c2364d4d..252fa5ec627 100644
--- a/include/rpcsvc/rstat.x
+++ b/include/rpcsvc/rstat.x
@@ -149,3 +149,10 @@ program RSTATPROG {
 		RSTATPROC_HAVEDISK(void) = 2;
 	} = 1;
 } = 100001;
+
+#ifdef RPC_HDR
+%
+%enum clnt_stat rstat(char *, struct statstime *);
+%int havedisk(char *);
+%
+#endif