[SR-Users] dnssec module

running kamailio from deb http://deb.kamailio.org/kamailio jessie main when i add the dnssec module to /etc/kamailio/kamailio.cfg kamailiop fails to start and gives: [FAIL] Not starting Kamailio SIP Server: invalid configuration file! ... failed! failed! [....] 0(8839) ERROR: <core> [sr_module.c:597]: load_module(): could not open module </usr/lib/x86_64-linux-gnu/kamailio/modules/dnssec.so>: /usr/lib/x86_64-linux-gnu/libval-threads.so.14: undefined symbol: SSL_get_SSL_CTX 0(8839) : <core> [cfg.y:3436]: yyerror_at(): parse error in config file /etc/kamailio/kam[FAIL.cfg, line 239, column 12-22: failed to load module ERROR: bad config file (1 errors) ... failed! failed! $ sudo ls -la /usr/lib/x86_64-linux-gnu/kamailio/modules/dnssec.so -rw-r--r-- 1 root root 22912 Oct 17 09:04 /usr/lib/x86_64-linux-gnu/kamailio/modules/dnssec.so any help appreciated thanks