diff --git a/hedgehog/index.ts b/hedgehog/index.ts
index cb00fbb..248314d 100644
--- a/hedgehog/index.ts
+++ b/hedgehog/index.ts
@@ -1 +1,2 @@
 export * from './client/hedgehogClient';
+export { ack, io, analog, digital, motor, servo, process, Message } from './protocol';
diff --git a/hedgehog/protocol/index.ts b/hedgehog/protocol/index.ts
index 786378d..69e0b2f 100644
--- a/hedgehog/protocol/index.ts
+++ b/hedgehog/protocol/index.ts
@@ -6,9 +6,6 @@ import * as motor from './messages/motor';
 import * as servo from './messages/servo';
 import * as process from './messages/process';
 
-export {
-    ack, io, analog, digital,
-    motor, servo, process,
-};
+export { ack, io, analog, digital, motor, servo, process };
 
-export { RequestMsg, ReplyMsg, message, Message, ContainerMessage, ProtoContainerMessage } from './messages';
+export { RequestMsg, ReplyMsg, Message, ContainerMessage } from './messages';
diff --git a/hedgehog/utils/protobuf/index.ts b/hedgehog/utils/protobuf/index.ts
index 663d5e1..46fc54c 100644
--- a/hedgehog/utils/protobuf/index.ts
+++ b/hedgehog/utils/protobuf/index.ts
@@ -1,7 +1,7 @@
 type Class<T> = new (...args: any[]) => T;
 type DefaultCtorClass<T> = new () => T;
 
-export interface ProtoMessage {
+interface ProtoMessage {
     serializeBinary(): Uint8Array;
 }
 export interface ProtoContainerMessage extends ProtoMessage {
@@ -75,7 +75,7 @@ export class ContainerMessage {
 
 export abstract class Message {
     public isAsync = false;
-    public meta: MessageMeta;
+    private meta: MessageMeta;
 
     public abstract serializeTo(containerMsg: ProtoContainerMessage): void;
 }