diff --git a/wpa_supplicant/ap.c b/wpa_supplicant/ap.c
index 7de924945..67f2d8ac1 100644
--- a/wpa_supplicant/ap.c
+++ b/wpa_supplicant/ap.c
@@ -175,6 +175,9 @@ no_vht:
 	hostapd_set_oper_centr_freq_seg0_idx(
 		conf, conf->channel + conf->secondary_channel * 2);
 	hostapd_set_oper_chwidth(conf, CONF_OPER_CHWIDTH_USE_HT);
+	ieee80211_freq_to_channel_ext(ssid->frequency, 0,
+				      conf->vht_oper_chwidth,
+				      &conf->op_class, &conf->channel);
 }