diff --git a/XPS-13-7390-2-in-1--.md b/XPS-13-7390-2-in-1--.md
index 5484638..e467938 100644
--- a/XPS-13-7390-2-in-1--.md
+++ b/XPS-13-7390-2-in-1--.md
@@ -145,6 +145,7 @@ cryptsetup luksFormat --cipher aes-xts-plain64 --verify-passphrase --key-size 25
 ~~~
 
 [](https://help.ubuntu.com/community/EnableHibernateWithEncryptedSwap#Preparation)
+[](http://tlbdk.github.io/ubuntu/2018/10/22/encrypted-swap.html)
 
 # rotate