diff --git a/mac80211.c b/mac80211.c
index c757254c..01af3aad 100644
--- a/mac80211.c
+++ b/mac80211.c
@@ -234,6 +234,8 @@ int mt76_register_device(struct mt76_dev *dev, bool vht,
 	ieee80211_hw_set(hw, TX_FRAG_LIST);
 	ieee80211_hw_set(hw, MFP_CAPABLE);
 
+	wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
+
 	if (dev->cap.has_2ghz) {
 		ret = mt76_init_sband_2g(dev, rates, n_rates);
 		if (ret)