diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index b8c6f6a668fc..49b71453dec3 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2918,7 +2918,7 @@ void ieee80211_sta_set_max_amsdu_subframes(struct sta_info *sta,
 				   WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB) << 1;
 
 	if (val)
-		sta->sta.max_amsdu_subframes = 4 << val;
+		sta->sta.max_amsdu_subframes = 4 << (4 - val);
 }
 
 #ifdef CONFIG_LOCKDEP