diff --git a/drivers/net/miidev.c b/drivers/net/miidev.c
index 3d552db..fa9d79e 100644
--- a/drivers/net/miidev.c
+++ b/drivers/net/miidev.c
@@ -183,7 +183,7 @@
 	struct mii_device *mdev = dev->priv;
 
 	mdev->cdev.name = asprintf("phy%d", dev->id);
-	mdev->cdev.size = 32;
+	mdev->cdev.size = 64;
 	mdev->cdev.ops = &miidev_ops;
 	mdev->cdev.priv = mdev;
 	mdev->cdev.dev = dev;