diff --git a/drivers/nvmem/ocotp.c b/drivers/nvmem/ocotp.c
index 5b8b925..ab543b4 100644
--- a/drivers/nvmem/ocotp.c
+++ b/drivers/nvmem/ocotp.c
@@ -51,7 +51,7 @@
 #define OCOTP_CTRL_WR_UNLOCK_KEY	0x3E77
 #define OCOTP_CTRL_WR_UNLOCK_MASK	0xFFFF0000
 #define OCOTP_CTRL_ADDR			0
-#define OCOTP_CTRL_ADDR_MASK		0x0000007F
+#define OCOTP_CTRL_ADDR_MASK		0x000000FF
 #define OCOTP_CTRL_BUSY			(1 << 8)
 #define OCOTP_CTRL_ERROR		(1 << 9)
 #define OCOTP_CTRL_RELOAD_SHADOWS	(1 << 10)