diff --git a/drivers/net/dl2k.c b/drivers/net/dl2k.c
index c749e9fb47ef9d99922946f42013ab21951b5eb4..4a1b554654ebe573a159e515a7795b22af049a88 100644
--- a/drivers/net/dl2k.c
+++ b/drivers/net/dl2k.c
@@ -714,7 +714,7 @@ rio_interrupt (int irq, void *dev_instance)
 
 static inline dma_addr_t desc_to_dma(struct netdev_desc *desc)
 {
-	return le64_to_cpu(desc->fraginfo) & DMA_48BIT_MASK;
+	return le64_to_cpu(desc->fraginfo) & DMA_BIT_MASK(48);
 }
 
 static void