diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 75a9bf50207ecd6cdf5ac41cae7101d03ac58a11..2c36c4765f47f28c42d1b2112b59a764ba4ed82f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -174,6 +174,7 @@ ieee80211_determine_chantype(struct ieee80211_sub_if_data *sdata,
 	if (!(ht_cap->cap_info &
 	      cpu_to_le16(IEEE80211_HT_CAP_SUP_WIDTH_20_40))) {
 		ret = IEEE80211_STA_DISABLE_40MHZ;
+		vht_chandef = *chandef;
 		goto out;
 	}