diff --git a/libraries/chain/include/graphene/chain/protocol/types.hpp b/libraries/chain/include/graphene/chain/protocol/types.hpp
index 7db63c0d..d0b90a0d 100644
--- a/libraries/chain/include/graphene/chain/protocol/types.hpp
+++ b/libraries/chain/include/graphene/chain/protocol/types.hpp
@@ -92,7 +92,6 @@ namespace graphene { namespace chain {
    using                               fc::enum_type;
    using                               fc::optional;
    using                               fc::unsigned_int;
-   using                               fc::signed_int;
    using                               fc::time_point_sec;
    using                               fc::time_point;
    using                               fc::safe;
@@ -323,7 +322,6 @@ namespace graphene { namespace chain {
    typedef object_id< implementation_ids, impl_sweeps_vesting_balance_object_type, sweeps_vesting_balance_object>       sweeps_vesting_balance_id_type;
    typedef object_id< implementation_ids, impl_offer_history_object_type, offer_history_object>                         offer_history_id_type;
 
-   typedef fc::array<char, GRAPHENE_MAX_ASSET_SYMBOL_LENGTH>    symbol_type;
    typedef fc::ripemd160                                        block_id_type;
    typedef fc::ripemd160                                        checksum_type;
    typedef fc::ripemd160                                        transaction_id_type;
diff --git a/libraries/net/include/graphene/net/message.hpp b/libraries/net/include/graphene/net/message.hpp
index 686fea24..8f6d2b6e 100644
--- a/libraries/net/include/graphene/net/message.hpp
+++ b/libraries/net/include/graphene/net/message.hpp
@@ -26,7 +26,6 @@
 
 #include <graphene/chain/protocol/types.hpp>
 
-#include <fc/array.hpp>
 #include <fc/io/varint.hpp>
 #include <fc/network/ip.hpp>
 #include <fc/io/raw_fwd.hpp>
diff --git a/libraries/net/include/graphene/net/stcp_socket.hpp b/libraries/net/include/graphene/net/stcp_socket.hpp
index cca94d57..ff0ea337 100644
--- a/libraries/net/include/graphene/net/stcp_socket.hpp
+++ b/libraries/net/include/graphene/net/stcp_socket.hpp
@@ -61,8 +61,6 @@ class stcp_socket : public virtual fc::iostream
 
     fc::sha512           _shared_secret;
     fc::ecc::private_key _priv_key;
-    fc::array<char,8>    _buf;
-    //uint32_t             _buf_len;
     fc::tcp_socket       _sock;
     fc::aes_encoder      _send_aes;
     fc::aes_decoder      _recv_aes;