diff --git a/mt7921/main.c b/mt7921/main.c
index ea107998..84215d28 100644
--- a/mt7921/main.c
+++ b/mt7921/main.c
@@ -382,6 +382,7 @@ static int mt7921_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 	case WLAN_CIPHER_SUITE_WEP104:
 		if (!mvif->wep_sta)
 			return -EOPNOTSUPP;
+		break;
 	case WLAN_CIPHER_SUITE_TKIP:
 	case WLAN_CIPHER_SUITE_CCMP:
 	case WLAN_CIPHER_SUITE_CCMP_256: