diff --git a/drivers/net/mv643xx_eth.c b/drivers/net/mv643xx_eth.c
index eeab1df5bef3..59de3e74d2d7 100644
--- a/drivers/net/mv643xx_eth.c
+++ b/drivers/net/mv643xx_eth.c
@@ -385,7 +385,7 @@ static int mv643xx_eth_receive_queue(struct net_device *dev, int budget)
 	struct pkt_info pkt_info;
 
 	while (budget-- > 0 && eth_port_receive(mp, &pkt_info) == ETH_OK) {
-		dma_unmap_single(NULL, pkt_info.buf_ptr, RX_SKB_SIZE,
+		dma_unmap_single(NULL, pkt_info.buf_ptr, ETH_RX_SKB_SIZE,
 							DMA_FROM_DEVICE);
 		mp->rx_desc_count--;
 		received_packets++;