diff --git a/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp b/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
index dcd5e401..abde7b51 100644
--- a/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
+++ b/libraries/plugins/peerplays_sidechain/peerplays_sidechain_plugin.cpp
@@ -138,8 +138,10 @@ void peerplays_sidechain_plugin_impl::plugin_initialize(const boost::program_opt
    config_ready_son = (options.count("son-id") || options.count("son-ids")) && options.count("peerplays-private-key");
    if (config_ready_son) {
       LOAD_VALUE_SET(options, "son-id", sons, chain::son_id_type)
-      if (options.count("son-ids"))
-         boost::insert(sons, fc::json::from_string(options.at("son-ids").as<string>()).as<vector<chain::son_id_type>>(5));
+      if (options.count("son-ids")) {
+         vector<chain::son_id_type> v = fc::json::from_string(options.at("son-ids").as<string>()).as<vector<chain::son_id_type>>(5);
+         sons.insert(v.begin(), v.end());
+      }
       config_ready_son = config_ready_son && !sons.empty();
 
 #ifndef ENABLE_MULTIPLE_SONS
diff --git a/libraries/plugins/witness/witness.cpp b/libraries/plugins/witness/witness.cpp
index 1e7a9d6e..d535ca3b 100644
--- a/libraries/plugins/witness/witness.cpp
+++ b/libraries/plugins/witness/witness.cpp
@@ -91,8 +91,10 @@ void witness_plugin::plugin_initialize(const boost::program_options::variables_m
    ilog("witness plugin:  plugin_initialize() begin");
    _options = &options;
    LOAD_VALUE_SET(options, "witness-id", _witnesses, chain::witness_id_type)
-   if (options.count("witness-ids"))
-      boost::insert(_witnesses, fc::json::from_string(options.at("witness-ids").as<string>()).as<vector<chain::witness_id_type>>( 5 ));
+   if (options.count("witness-ids")) {
+       vector<chain::witness_id_type> v = fc::json::from_string(options.at("witness-ids").as<string>()).as<vector<chain::witness_id_type>>( 5 );
+       _witnesses.insert(v.begin(), v.end());
+   }
 
    if( options.count("private-key") )
    {