diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index 1799eee88db7..6a117e9968cb 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -1222,7 +1222,7 @@ static int mv643xx_eth_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	spin_lock_irqsave(&mp->lock, flags);
 
 	eth_tx_submit_descs_for_skb(mp, skb);
-	stats->tx_bytes = skb->len;
+	stats->tx_bytes += skb->len;
 	stats->tx_packets++;
 	dev->trans_start = jiffies;