diff --git a/drivers/staging/olpc_dcon/olpc_dcon.h b/drivers/staging/olpc_dcon/olpc_dcon.h
index 524ee49fbacb4be70dd4d00847d9044bfffa84b3..e2663b189c66d94ffefb5c2d2435b84be8e29444 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.h
+++ b/drivers/staging/olpc_dcon/olpc_dcon.h
@@ -30,7 +30,7 @@
 #define DCON_REG_VSYNC_WIDTH	0x7
 #define DCON_REG_TIMEOUT	0x8
 #define DCON_REG_SCAN_INT	0x9
-#define DCON_REG_BRIGHT		0x10
+#define DCON_REG_BRIGHT		0xa
 #define DCON_REG_MEM_OPT_A	0x41
 #define DCON_REG_MEM_OPT_B	0x42