diff --git a/templates/domain.tpl.in b/templates/domain.tpl.in
index 0a10675..236c453 100644
--- a/templates/domain.tpl.in
+++ b/templates/domain.tpl.in
@@ -43,3 +43,8 @@ tls_www_server
 # in TLS RSA ciphersuites). Note that it is preferred to use different
 # keys for encryption and signing.
 encryption_key
+
+# These options are here to make Chrome recognize the certificates
+# https://superuser.com/a/1466427
+non_repudiation
+signing_key