diff --git a/bdchain/api/ac_chain.proto b/bdchain/api/ac_chain.proto
index d78edaa..6145943 100644
--- a/bdchain/api/ac_chain.proto
+++ b/bdchain/api/ac_chain.proto
@@ -5,7 +5,7 @@ package bdchain.api;
 import "google/protobuf/empty.proto";
 import "bdchain/api/common.proto";
 
-option go_package = "bdchain/api/grpc/acchain";
+option go_package = "bdchain/sdk/api/grpc/acchain";
 option java_package = "bdchain.api.grpc";
 option java_outer_classname = "AccountingChainProto";
 option java_multiple_files = true;
diff --git a/bdchain/api/common.proto b/bdchain/api/common.proto
index 6367d5a..ce67c91 100644
--- a/bdchain/api/common.proto
+++ b/bdchain/api/common.proto
@@ -2,7 +2,7 @@ syntax = "proto3";
 
 package bdchain.api;
 
-option go_package = "bdchain/api/grpc/common";
+option go_package = "bdchain/sdk/api/grpc/common";
 option java_package = "bdchain.api.grpc";
 option java_outer_classname = "CommonProto";
 option java_multiple_files = true;
diff --git a/bdchain/api/error_details.proto b/bdchain/api/error_details.proto
index 51f9abb..f32ebc1 100644
--- a/bdchain/api/error_details.proto
+++ b/bdchain/api/error_details.proto
@@ -2,7 +2,7 @@ syntax = "proto3";
 
 package bdchain.api;
 
-option go_package = "bdchain/api/grpc/errdetails";
+option go_package = "bdchain/sdk/api/grpc/errdetails";
 option java_package = "bdchain.api.grpc";
 option java_outer_classname = "ErrorDetailsProto";
 option java_multiple_files = true;
diff --git a/bdchain/api/tx_ledger.proto b/bdchain/api/tx_ledger.proto
index 9f0ed33..6c98478 100644
--- a/bdchain/api/tx_ledger.proto
+++ b/bdchain/api/tx_ledger.proto
@@ -5,7 +5,7 @@ package bdchain.api;
 import "google/protobuf/empty.proto";
 import "bdchain/api/common.proto";
 
-option go_package = "bdchain/api/grpc/txledger";
+option go_package = "bdchain/sdk/api/grpc/txledger";
 option java_package = "bdchain.api.grpc";
 option java_outer_classname = "TransactionLedgerProto";
 option java_multiple_files = true;