diff --git a/crypttab b/crypttab
index 55eab38..840cd79 100644
--- a/crypttab
+++ b/crypttab
@@ -1 +1 @@
-swap /swapfile /dev/random swap,cipher=aes-xts-plain64,size=512,sector-size=4096,no-read-workqueue,no-write-workqueue
+swap /swapfile /dev/random swap,cipher=aes-xts-plain64,size=512,sector-size=4096,no-read-workqueue,no-write-workqueue,discard