diff --git a/apps/elasticsearch/restapi/custom/api.pm b/apps/elasticsearch/restapi/custom/api.pm
index c2eabb1ef..646a4fe17 100644
--- a/apps/elasticsearch/restapi/custom/api.pm
+++ b/apps/elasticsearch/restapi/custom/api.pm
@@ -49,6 +49,7 @@ sub new {
                       "password:s@" => { name => 'password' },
                       "proxyurl:s@" => { name => 'proxyurl' },
                       "timeout:s@"  => { name => 'timeout' },
+                      "ssl-opt:s@"  => { name => 'ssl_opt' },
                     });
     }
     $options{options}->add_help(package => __PACKAGE__, sections => 'REST API OPTIONS', once => 1);