diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 1104421bc525598aae491c587f29eb4b385fc220..f167056753395b042d74451464091a96e1923ef2 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -2324,6 +2324,8 @@ u8 *ieee80211_ie_build_vht_oper(u8 *pos, struct ieee80211_sta_vht_cap *vht_cap,
 	if (chandef->center_freq2)
 		vht_oper->center_freq_seg2_idx =
 			ieee80211_frequency_to_channel(chandef->center_freq2);
+	else
+		vht_oper->center_freq_seg2_idx = 0x00;
 
 	switch (chandef->width) {
 	case NL80211_CHAN_WIDTH_160: