diff --git a/src/drivers/nl80211_copy.h b/src/drivers/nl80211_copy.h
index ca3d5a613..c13c84304 100644
--- a/src/drivers/nl80211_copy.h
+++ b/src/drivers/nl80211_copy.h
@@ -2626,6 +2626,7 @@ enum nl80211_attrs {
 	NL80211_ATTR_EXTERNAL_AUTH_SUPPORT,
 
 	NL80211_ATTR_NSS,
+	NL80211_ATTR_ACK_SIGNAL,
 
 	/* add attributes here, update the policy in nl80211.c */
 
@@ -2947,6 +2948,7 @@ enum nl80211_sta_bss_param {
  * @NL80211_STA_INFO_RX_DURATION: aggregate PPDU duration for all frames
  *	received from the station (u64, usec)
  * @NL80211_STA_INFO_PAD: attribute used for padding for 64-bit alignment
+ * @NL80211_STA_INFO_ACK_SIGNAL: signal strength of the last ACK frame(u8, dBm)
  * @__NL80211_STA_INFO_AFTER_LAST: internal
  * @NL80211_STA_INFO_MAX: highest possible station info attribute
  */
@@ -2985,6 +2987,7 @@ enum nl80211_sta_info {
 	NL80211_STA_INFO_TID_STATS,
 	NL80211_STA_INFO_RX_DURATION,
 	NL80211_STA_INFO_PAD,
+	NL80211_STA_INFO_ACK_SIGNAL,
 
 	/* keep last */
 	__NL80211_STA_INFO_AFTER_LAST,