diff --git a/conservancy/supporters/templates/supporters/mail/sustainer_thanks.txt b/conservancy/supporters/templates/supporters/mail/sustainer_thanks.txt
index 69d8f3ce..8cb73ffc 100644
--- a/conservancy/supporters/templates/supporters/mail/sustainer_thanks.txt
+++ b/conservancy/supporters/templates/supporters/mail/sustainer_thanks.txt
@@ -1,4 +1,4 @@
-Hi {{ order.name }},
+{% autoescape off %}Hi {{ order.name }},
 
 Thanks so much for being a sustainer! Your support is what makes our work possible.
 
@@ -15,4 +15,4 @@ Postal address:
 Please note that you may not receive the T-shirt until you've paid at least $60.{% endif %}
 
 Kind regards,
-Software Freedom Conservancy
+Software Freedom Conservancy{% endautoescape %}