diff --git a/sys/net80211/ieee80211_ht.c b/sys/net80211/ieee80211_ht.c
--- a/sys/net80211/ieee80211_ht.c
+++ b/sys/net80211/ieee80211_ht.c
@@ -3216,7 +3216,7 @@
 		if (ic->ic_htcaps & IEEE80211_HTC_TXUNEQUAL)
 			txparams |= 0x16;	/* TX unequal modulation sup */
 	} else
-		txparams = 0;
+		txparams = 1;
 	frm[12] = txparams;
 }