diff --git a/include/stdlib/sys/uuid.h b/include/stdlib/sys/uuid.h
new file mode 100644
index 0000000..5c4767b
--- /dev/null
+++ b/include/stdlib/sys/uuid.h
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 2002 Marcel Moolenaar
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Portions copyright (c) 2014, ARM Limited and Contributors.
+ * All rights reserved.
+ */
+
+#ifndef _SYS_UUID_H_
+#define _SYS_UUID_H_
+
+#include <sys/cdefs.h>
+
+/* Length of a node address (an IEEE 802 address). */
+#define	_UUID_NODE_LEN		6
+
+/*
+ * See also:
+ *      http://www.opengroup.org/dce/info/draft-leach-uuids-guids-01.txt
+ *      http://www.opengroup.org/onlinepubs/009629399/apdxa.htm
+ *
+ * A DCE 1.1 compatible source representation of UUIDs.
+ */
+struct uuid {
+	uint32_t	time_low;
+	uint16_t	time_mid;
+	uint16_t	time_hi_and_version;
+	uint8_t		clock_seq_hi_and_reserved;
+	uint8_t		clock_seq_low;
+	uint8_t		node[_UUID_NODE_LEN];
+};
+
+/* XXX namespace pollution? */
+typedef struct uuid uuid_t;
+
+#endif /* _SYS_UUID_H_ */