diff --git a/net/wireless/util.c b/net/wireless/util.c
index b9d8ceb21327..1c39d6a2e850 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -1998,7 +1998,7 @@ int ieee80211_get_vht_max_nss(struct ieee80211_vht_cap *cap,
 			continue;
 
 		if (supp >= mcs_encoding) {
-			max_vht_nss = i;
+			max_vht_nss = i + 1;
 			break;
 		}
 	}