diff --git a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
index fb97f6a1..b5accca2 100644
--- a/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
+++ b/libraries/plugins/peerplays_sidechain/include/graphene/peerplays_sidechain/sidechain_net_handler_bitcoin.hpp
@@ -70,6 +70,7 @@ public:
    virtual std::string getblockchaininfo() = 0;
    virtual std::vector<btc_txout> listunspent_by_address_and_amount(const std::string &address, double transfer_amount, const uint32_t minconf = 1, const uint32_t maxconf = 9999999) = 0;
    virtual std::string sendrawtransaction(const std::string &tx_hex) = 0;
+   virtual void importmulti(const std::vector<multi_params> &address_or_script_array, const bool rescan = true) {;};
    virtual std::string loadwallet(const std::string &filename) {
       return "";
    };
diff --git a/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp b/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
index 3ad8820d..e7c19d54 100644
--- a/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
+++ b/libraries/plugins/peerplays_sidechain/sidechain_net_handler_bitcoin.cpp
@@ -338,7 +338,7 @@ bool bitcoin_rpc_client::walletpassphrase(const std::string &passphrase, uint32_
 bitcoin_libbitcoin_client::bitcoin_libbitcoin_client(std::string url) :
       libbitcoin_client(url) {
 
-   estimate_fee_ext = std::unique_ptr<estimate_fee_external>();
+   estimate_fee_ext = std::unique_ptr<estimate_fee_external>(new estimate_fee_external());
 }
 
 uint64_t bitcoin_libbitcoin_client::estimatesmartfee(uint16_t conf_target) {