diff --git a/tests/hwsim/auth_serv/as.conf b/tests/hwsim/auth_serv/as.conf
index e58a8d6ec..d62d96bb6 100644
--- a/tests/hwsim/auth_serv/as.conf
+++ b/tests/hwsim/auth_serv/as.conf
@@ -20,5 +20,6 @@ pac_opaque_encr_key=000102030405060708090a0b0c0d0e0f
 eap_fast_a_id=101112131415161718191a1b1c1d1e1f
 eap_fast_a_id_info=test server
 eap_sim_aka_result_ind=1
+tls_flags=[ENABLE-TLSv1.3]
 
 dump_msk_file=LOGDIR/as-msk.lst