diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 4e725d165aa6..e78545d4add3 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -5660,6 +5660,7 @@ static int rtl8xxxu_set_key(struct ieee80211_hw *hw, enum set_key_cmd cmd,
 		break;
 	case WLAN_CIPHER_SUITE_TKIP:
 		key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
+		break;
 	default:
 		return -EOPNOTSUPP;
 	}