diff --git a/sys/dev/iicbus/iic.h b/sys/dev/iicbus/iic.h
index ed22d856fed..471f9768d2a 100644
--- a/sys/dev/iicbus/iic.h
+++ b/sys/dev/iicbus/iic.h
@@ -36,7 +36,8 @@ struct iic_msg
 {
 	uint16_t	slave;
 	uint16_t	flags;
-#define IIC_M_RD	0x0001	/* read vs write */
+#define	IIC_M_WR	0	/* Fake flag for write */
+#define	IIC_M_RD	0x0001	/* read vs write */
 	uint16_t	len;	/* msg legnth */
 	uint8_t *	buf;
 };