diff --git a/include/unistd.h b/include/unistd.h
index a28be82f0168..1f1f8a7cebd4 100644
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -557,12 +557,10 @@ pid_t	 rfork_thread(int, void *, int (*)(void *), void *);
 int	 rresvport(int *);
 int	 rresvport_af(int *, int);
 int	 ruserok(const char *, int, const char *, const char *);
-#if __BSD_VISIBLE
 #ifndef _SELECT_DECLARED
 #define	_SELECT_DECLARED
 int	 select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
 #endif
-#endif
 int	 setdomainname(const char *, int);
 int	 setgroups(int, const gid_t *);
 void	 sethostid(long);