diff --git a/testing/tests/tkm/host2host-initiator/hosts/sun/etc/ipsec.conf b/testing/tests/tkm/host2host-initiator/hosts/sun/etc/ipsec.conf
index 4ad0aa7db..e52a04f42 100644
--- a/testing/tests/tkm/host2host-initiator/hosts/sun/etc/ipsec.conf
+++ b/testing/tests/tkm/host2host-initiator/hosts/sun/etc/ipsec.conf
@@ -17,4 +17,5 @@ conn host-host
 	rightid=moon.strongswan.org
 	ike=aes256-sha512-modp4096!
 	esp=aes256-sha512-modp4096!
+	type=transport
 	auto=add
diff --git a/testing/tests/tkm/host2host-xfrmproxy/hosts/sun/etc/ipsec.conf b/testing/tests/tkm/host2host-xfrmproxy/hosts/sun/etc/ipsec.conf
index 4ad0aa7db..e52a04f42 100644
--- a/testing/tests/tkm/host2host-xfrmproxy/hosts/sun/etc/ipsec.conf
+++ b/testing/tests/tkm/host2host-xfrmproxy/hosts/sun/etc/ipsec.conf
@@ -17,4 +17,5 @@ conn host-host
 	rightid=moon.strongswan.org
 	ike=aes256-sha512-modp4096!
 	esp=aes256-sha512-modp4096!
+	type=transport
 	auto=add