diff --git a/drivers/message/fusion/mptsas.h b/drivers/message/fusion/mptsas.h
index 953c2bfcf6aaa470f05a0e3be18c966c05f3dc6b..7b249edbda784067cf3c3d8143eaea990cab2dca 100644
--- a/drivers/message/fusion/mptsas.h
+++ b/drivers/message/fusion/mptsas.h
@@ -110,7 +110,7 @@ struct fw_event_work {
 	MPT_ADAPTER	*ioc;
 	u32			event;
 	u8			retries;
-	u8			event_data[1];
+	u8			__attribute__((aligned(4))) event_data[1];
 };
 
 struct mptsas_discovery_event {