diff --git a/bdchain/api/ac_chain.proto b/bdchain/api/ac_chain.proto
index aa270f0..be0a638 100644
--- a/bdchain/api/ac_chain.proto
+++ b/bdchain/api/ac_chain.proto
@@ -6,7 +6,7 @@ import "google/protobuf/empty.proto";
 import "bdchain/api/common.proto";
 
 option go_package = "bdchain/sdk/api/grpc/acchain";
-option java_package = "bdchain.api.grpc";
+option java_package = "bdchain.api.grpc.acchain";
 option java_outer_classname = "AccountingChainProto";
 option java_multiple_files = true;
 
diff --git a/bdchain/api/common.proto b/bdchain/api/common.proto
index 37f708b..2ae17b9 100644
--- a/bdchain/api/common.proto
+++ b/bdchain/api/common.proto
@@ -3,7 +3,7 @@ syntax = "proto3";
 package bdchain.api;
 
 option go_package = "bdchain/sdk/api/grpc/common";
-option java_package = "bdchain.api.grpc";
+option java_package = "bdchain.api.grpc.common";
 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 f32ebc1..56b234f 100644
--- a/bdchain/api/error_details.proto
+++ b/bdchain/api/error_details.proto
@@ -3,7 +3,7 @@ syntax = "proto3";
 package bdchain.api;
 
 option go_package = "bdchain/sdk/api/grpc/errdetails";
-option java_package = "bdchain.api.grpc";
+option java_package = "bdchain.api.grpc.common";
 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 f285fe0..5ab3140 100644
--- a/bdchain/api/tx_ledger.proto
+++ b/bdchain/api/tx_ledger.proto
@@ -6,7 +6,7 @@ import "google/protobuf/empty.proto";
 import "bdchain/api/common.proto";
 
 option go_package = "bdchain/sdk/api/grpc/txledger";
-option java_package = "bdchain.api.grpc";
+option java_package = "bdchain.api.grpc.txledger";
 option java_outer_classname = "TransactionLedgerProto";
 option java_multiple_files = true;