diff --git a/drivers/zorro/zorro-sysfs.c b/drivers/zorro/zorro-sysfs.c
index 87c29d7..c3ba0ec 100644
--- a/drivers/zorro/zorro-sysfs.c
+++ b/drivers/zorro/zorro-sysfs.c
@@ -42,7 +42,8 @@
 	struct zorro_dev *z = to_zorro_dev(dev);
 
 	return sprintf(buf, "0x%08lx 0x%08lx 0x%08lx\n",
-		       zorro_resource_start(z), zorro_resource_end(z),
+		       (unsigned long)zorro_resource_start(z),
+		       (unsigned long)zorro_resource_end(z),
 		       zorro_resource_flags(z));
 }