diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 5f80df7..f0ee03b 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -12248,7 +12248,7 @@
 client_needs_more_time 2
 run_test    "DTLS proxy: 3d (drop, delay, duplicate), \"short\" PSK handshake" \
             -p "$P_PXY drop=5 delay=5 duplicate=5" \
-            "$P_SRV dtls=1 dgram_packing=0 hs_timeout=500-10000 tickets=0 auth_mode=none \
+            "$P_SRV dtls=1 dgram_packing=0 hs_timeout=500-10000 tickets=0 \
              psk=73776f726466697368" \
             "$P_CLI dtls=1 dgram_packing=0 hs_timeout=500-10000 tickets=0 psk=73776f726466697368 \
              force_ciphersuite=TLS-PSK-WITH-AES-128-CCM-8" \