diff --git a/arch/arm/include/asm/arch-bcm2835/mbox.h b/arch/arm/include/asm/arch-bcm2835/mbox.h
index 24abe57..6b806ec 100644
--- a/arch/arm/include/asm/arch-bcm2835/mbox.h
+++ b/arch/arm/include/asm/arch-bcm2835/mbox.h
@@ -350,6 +350,7 @@
 			u32 top;
 			u32 bottom;
 			u32 left;
+			u32 right;
 		} resp;
 	} body;
 };