diff --git a/include/time.h b/include/time.h
index 2f4c74f73ecccc6a1bd2674aff39a3b0b5ef65a1..fbc47db90e7cf5f62225f8ecf4d78ad7c46263fa 100644
--- a/include/time.h
+++ b/include/time.h
@@ -45,6 +45,10 @@ struct tm
 	long __tm_gmtoff;
 	const char *__tm_zone;
 };
+#if defined(_BSD_SOURCE)
+#define tm_gmtoff __tm_gmtoff
+#define tm_zone __tm_zone
+#endif
 
 clock_t clock (void);
 time_t time (time_t *);