diff --git a/templates/crypttab.j2 b/templates/crypttab.j2
index e1e6515..eeb8779 100644
--- a/templates/crypttab.j2
+++ b/templates/crypttab.j2
@@ -1,3 +1,3 @@
 {% for cryptdev in dmcrypt_devices %}
-{{ cryptdev.name }} {{ cryptdev.device }} none luks
+{{ cryptdev.name }} {{ cryptdev.device }} none luks{{ cryptdev.discard | default(false) | ternary(',discard','') }}
 {% endfor %}