diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h
index 0b93babcaa1b1517ac40332da4073ecea977b573..c1d699fd5717ad892e365ee4065e9eaa74d35183 100644
--- a/drivers/net/wireless/ath/ath.h
+++ b/drivers/net/wireless/ath/ath.h
@@ -218,6 +218,7 @@ do {								\
  * @ATH_DBG_MCI: Message Coexistence Interface, a private protocol
  *	used exclusively for WLAN-BT coexistence starting from
  *	AR9462.
+ * @ATH_DBG_DFS: radar datection
  * @ATH_DBG_ANY: enable all debugging
  *
  * The debug level is used to control the amount and type of debugging output
@@ -244,6 +245,7 @@ enum ATH_DEBUG {
 	ATH_DBG_WMI		= 0x00004000,
 	ATH_DBG_BSTUCK		= 0x00008000,
 	ATH_DBG_MCI		= 0x00010000,
+	ATH_DBG_DFS		= 0x00020000,
 	ATH_DBG_ANY		= 0xffffffff
 };