diff --git a/net/decnet/dn_dev.c b/net/decnet/dn_dev.c
index d2ae9893ca17392d2eea5472ee4b423156b4de1b..a26ff9f44576fffb0c20dd7725a463c291db989e 100644
--- a/net/decnet/dn_dev.c
+++ b/net/decnet/dn_dev.c
@@ -620,7 +620,7 @@ int dn_dev_set_default(struct net_device *dev, int force)
 	}
 	write_unlock(&dndev_lock);
 	if (old)
-		dev_put(dev);
+		dev_put(old);
 	return rv;
 }