diff --git a/drivers/net/spider_net.c b/drivers/net/spider_net.c
index 05bdd0b..9d2ed04 100644
--- a/drivers/net/spider_net.c
+++ b/drivers/net/spider_net.c
@@ -1356,7 +1356,7 @@
 		if (netif_msg_intr(card))
 			pr_err("got descriptor chain end interrupt, "
 			       "restarting DMAC %c.\n",
-			       'D'+i-SPIDER_NET_GDDDCEINT);
+			       'D'-(i-SPIDER_NET_GDDDCEINT)/3);
 		spider_net_refill_rx_chain(card);
 		spider_net_enable_rxdmac(card);
 		show_error = 0;