diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index 9ecb6ee81..0bc799d3e 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -1241,7 +1241,8 @@ hostapd_set_oper_centr_freq_seg0_idx(struct hostapd_config *conf,
 #ifdef CONFIG_IEEE80211BE
 	if (conf->ieee80211be)
 		conf->eht_oper_centr_freq_seg0_idx = oper_centr_freq_seg0_idx;
-	if (center_idx_to_bw_6ghz(oper_centr_freq_seg0_idx) == 4)
+	if (is_6ghz_op_class(conf->op_class) &&
+	    center_idx_to_bw_6ghz(oper_centr_freq_seg0_idx) == 4)
 		oper_centr_freq_seg0_idx +=
 			conf->channel > oper_centr_freq_seg0_idx ? 16 : -16;
 #endif /* CONFIG_IEEE80211BE */