diff --git a/testing/tests/ipv6-host2host/hosts/moon/etc/ipsec.conf b/testing/tests/ipv6-host2host/hosts/moon/etc/ipsec.conf
index 846ddce4d..dc669c273 100755
--- a/testing/tests/ipv6-host2host/hosts/moon/etc/ipsec.conf
+++ b/testing/tests/ipv6-host2host/hosts/moon/etc/ipsec.conf
@@ -28,6 +28,5 @@ conn host-host
 	right=PH_IP6_SUN
 	rightnexthop=0::0
 	rightid=@sun.strongswan.org
-	#keyexchange=ikev2
 	auto=add