diff --git a/libc/include/sys/times.h b/libc/include/sys/times.h
index 3c8a4ef..f52db1f 100644
--- a/libc/include/sys/times.h
+++ b/libc/include/sys/times.h
@@ -35,8 +35,8 @@
 
 __BEGIN_DECLS
 
-clock_t times(struct tms* __buf);
+clock_t times(struct tms*);
 
 __END_DECLS
 
-#endif
+#endif /* _SYS_TIMES_H_ */