Avoid issue with OpenSSl in interop test
diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index 86deb2d..634b149 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -3064,7 +3064,7 @@
 run_test    "DTLS proxy: 3d, openssl server" \
             -p "$P_PXY drop=5 delay=5 duplicate=5 protect_hvr=1" \
             "$O_SRV -dtls1 -mtu 2048" \
-            "$P_CLI dtls=1 hs_timeout=250-60000" \
+            "$P_CLI dtls=1 hs_timeout=250-60000 tickets=0" \
             0 \
             -s "Extra-header:" \
             -c "HTTP/1.0 200 OK"
@@ -3073,7 +3073,7 @@
 run_test    "DTLS proxy: 3d, openssl server, fragmentation" \
             -p "$P_PXY drop=5 delay=5 duplicate=5 protect_hvr=1" \
             "$O_SRV -dtls1 -mtu 768" \
-            "$P_CLI dtls=1 hs_timeout=250-60000" \
+            "$P_CLI dtls=1 hs_timeout=250-60000 tickets=0" \
             0 \
             -s "Extra-header:" \
             -c "HTTP/1.0 200 OK"
@@ -3082,7 +3082,7 @@
 run_test    "DTLS proxy: 3d, openssl server, fragmentation, nbio" \
             -p "$P_PXY drop=5 delay=5 duplicate=5 protect_hvr=1" \
             "$O_SRV -dtls1 -mtu 768" \
-            "$P_CLI dtls=1 hs_timeout=250-60000 nbio=2" \
+            "$P_CLI dtls=1 hs_timeout=250-60000 nbio=2 tickets=0" \
             0 \
             -s "Extra-header:" \
             -c "HTTP/1.0 200 OK"