diff --git a/sys/net80211/ieee80211.h b/sys/net80211/ieee80211.h
--- a/sys/net80211/ieee80211.h
+++ b/sys/net80211/ieee80211.h
@@ -1017,6 +1017,8 @@
 
 /*
  * Management information element payloads.
+ *
+ * 802.11-2016 Table 9-77 (Element IDs).
  */
 
 enum {
@@ -1058,6 +1060,7 @@
 	IEEE80211_ELEMID_COEX_2040	= 72,
 	IEEE80211_ELEMID_INTOL_CHN_REPORT	= 73,
 	IEEE80211_ELEMID_OVERLAP_BSS_SCAN_PARAM = 74,
+	IEEE80211_ELEMID_MMIC		= 76,
 	IEEE80211_ELEMID_TSF_REQ	= 91,
 	IEEE80211_ELEMID_TSF_RESP	= 92,
 	IEEE80211_ELEMID_WNM_SLEEP_MODE	= 93,