diff --git a/drivers/mmc/host/cmdq_hci.h b/drivers/mmc/host/cmdq_hci.h
index 6b21228..07583a9 100644
--- a/drivers/mmc/host/cmdq_hci.h
+++ b/drivers/mmc/host/cmdq_hci.h
@@ -88,6 +88,7 @@
 
 /* response mode error mask */
 #define CQRMEM		0x50
+#define CQ_EXCEPTION	(1 << 6)
 
 /* task error info */
 #define CQTERRI		0x54