diff --git a/newlib/libc/sys/rtems/include/machine/_types.h b/newlib/libc/sys/rtems/include/machine/_types.h
index 8e2d9a3ef..5bbe5a5a6 100644
--- a/newlib/libc/sys/rtems/include/machine/_types.h
+++ b/newlib/libc/sys/rtems/include/machine/_types.h
@@ -30,6 +30,9 @@ typedef	__uint64_t	_CLOCK_T_;
 typedef	int		_CLOCKID_T_;
 #define	__machine_clockid_t_defined
 
+typedef	__int64_t	daddr_t;
+#define	__daddr_t_defined
+
 typedef	int		__accmode_t;	/* access permissions */
 typedef	__uint32_t	__fixpt_t;	/* fixed point number */
 typedef	int		__lwpid_t;	/* Thread ID (a.k.a. LWP) */