diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 69691bf6197dc8dc2ca73a1b24cfcf1fbd0e4d28..333a75e4a08c205a5c47e4f765899335d80927ad 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -724,7 +724,7 @@ mt7915_mcu_add_nested_subtlv(struct sk_buff *skb, int sub_tag, int sub_len,
 		.len = cpu_to_le16(sub_len),
 	};
 
-	ptlv = skb_put(skb, sub_len);
+	ptlv = skb_put_zero(skb, sub_len);
 	memcpy(ptlv, &tlv, sizeof(tlv));
 
 	le16_add_cpu(sub_ntlv, 1);