diff --git a/drivers/net/ax88796.c b/drivers/net/ax88796.c
index 1d88236..e43e804 100644
--- a/drivers/net/ax88796.c
+++ b/drivers/net/ax88796.c
@@ -819,7 +819,7 @@
 	}
 
 	ei_status.mem = ioremap(res->start, size);
-	dev->base_addr = (long)ei_status.mem;
+	dev->base_addr = (unsigned long)ei_status.mem;
 
 	if (ei_status.mem == NULL) {
 		dev_err(&pdev->dev, "Cannot ioremap area (%08zx,%08zx)\n",