diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index b907482..1eefc5d 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -459,7 +459,8 @@
 		synchronize_rcu();
 		skb_queue_purge(&sdata->u.sta.skb_queue);
 
-		sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
+		sdata->u.sta.flags &= ~(IEEE80211_STA_PRIVACY_INVOKED |
+					IEEE80211_STA_TKIP_WEP_USED);
 		kfree(sdata->u.sta.extra_ie);
 		sdata->u.sta.extra_ie = NULL;
 		sdata->u.sta.extra_ie_len = 0;