diff --git a/arch/arm/mach-bcm2835/include/mach/mbox.h b/arch/arm/mach-bcm2835/include/mach/mbox.h
index 6c3638953..fb8a9bf02 100644
--- a/arch/arm/mach-bcm2835/include/mach/mbox.h
+++ b/arch/arm/mach-bcm2835/include/mach/mbox.h
@@ -355,6 +355,7 @@ struct bcm2835_mbox_tag_overscan {
 			u32 top;
 			u32 bottom;
 			u32 left;
+			u32 right;
 		} resp;
 	} body;
 };