diff --git a/drivers/parisc/hppb.c b/drivers/parisc/hppb.c
index 65eee67..1385641 100644
--- a/drivers/parisc/hppb.c
+++ b/drivers/parisc/hppb.c
@@ -29,7 +29,7 @@
 	struct hppb_card *next;
 };
 
-struct hppb_card hppb_card_head = {
+static struct hppb_card hppb_card_head = {
 	.hpa = 0,
 	.next = NULL,
 };