diff --git a/sys/net80211/ieee80211_var.h b/sys/net80211/ieee80211_var.h
index 9273b43a5823..88df659829d9 100644
--- a/sys/net80211/ieee80211_var.h
+++ b/sys/net80211/ieee80211_var.h
@@ -982,6 +982,15 @@ ieee80211_get_node_txpower(struct ieee80211_node *ni)
 	return (txpower);
 }
 
+/*
+ * Determine whether the given key in the given VAP is a WEP or GROUP key.
+ */
+static __inline int
+ieee80211_is_key_group(const struct ieee80211vap *vap,
+    const struct ieee80211_key *key)
+{
+}
+
 /*
  * Debugging facilities compiled in when IEEE80211_DEBUG is defined.
  *