diff --git a/sys/net80211/ieee80211.c b/sys/net80211/ieee80211.c
--- a/sys/net80211/ieee80211.c
+++ b/sys/net80211/ieee80211.c
@@ -2700,6 +2700,17 @@
 	    key < &vap->iv_nw_keys[IEEE80211_WEP_NKID]);
 }
 
+/*
+ * Determine whether the given key in the given VAP is an iGTK key.
+ * (key index 4 and 5, shared between all stations on a VAP.)
+ */
+bool
+ieee80211_is_key_igtk(const struct ieee80211vap *vap,
+    const struct ieee80211_key *key)
+{
+	return false;
+}
+
 /*
  * Determine whether the given key in the given VAP is a unicast key.
  */
diff --git a/sys/net80211/ieee80211_var.h b/sys/net80211/ieee80211_var.h
--- a/sys/net80211/ieee80211_var.h
+++ b/sys/net80211/ieee80211_var.h
@@ -826,6 +826,8 @@
 
 bool	ieee80211_is_key_global(const struct ieee80211vap *vap,
 	    const struct ieee80211_key *key);
+bool	ieee80211_is_key_igtk(const struct ieee80211vap *vap,
+	    const struct ieee80211_key *key);
 bool	ieee80211_is_key_unicast(const struct ieee80211vap *vap,
 	    const struct ieee80211_key *key);