diff --git a/packages/net/client/socket.js b/packages/net/client/socket.js
index 8ea654e..bbfc8bc 100644
--- a/packages/net/client/socket.js
+++ b/packages/net/client/socket.js
@@ -61,10 +61,10 @@ export class SocketClient extends decorate(class {}) {
       const [, M] = entries[i];
       const {default: Packet} = M;
       const id = idFrom(M);
-      this.socket.on(id, (data) => {
+      this.socket.on(id, (data, fn) => {
         const packet = new Packet(data);
         debug('recieved packet %o', packet);
-        this.emit('packet', packet);
+        this.emit('packet', packet, fn);
       });
     }
   }
@@ -77,11 +77,11 @@ export class SocketClient extends decorate(class {}) {
     return this.socket ? this.socket.id : undefined;
   }
 
-  send(packet) {
+  send(packet, fn) {
     debug('sending packet %o', packet);
     const {idFrom} = require('../packet/registrar');
     const id = idFrom(packet.constructor);
-    this.socket.binary(true).emit(id, packet.data);
+    this.socket.binary(true).emit(id, packet.data, fn);
   }
 
   get session() {
diff --git a/packages/net/server/socket.js b/packages/net/server/socket.js
index cff4858..f58583b 100644
--- a/packages/net/server/socket.js
+++ b/packages/net/server/socket.js
@@ -68,10 +68,10 @@ class ServerSocket extends decorateSocket(class {}) {
       const [, M] = entries[i];
       const {default: Packet} = M;
       const id = idFrom(M);
-      this.socket.on(id, (data) => {
+      this.socket.on(id, (data, fn) => {
         const packet = new Packet(data);
         debug('recieved packet %o', packet);
-        this.emit('packet', packet);
+        this.emit('packet', packet, fn);
       });
     }
     this.socket.on('disconnect', (...args) => {
@@ -95,11 +95,11 @@ class ServerSocket extends decorateSocket(class {}) {
     this.socket.join(channel);
   }
 
-  send(packet) {
+  send(packet, fn) {
     debug('sending packet %o', packet);
     const {idFrom} = require('../packet/registrar');
     const id = idFrom(packet.constructor);
-    this.socket.binary(true).emit(id, packet.data);
+    this.socket.binary(true).emit(id, packet.data, fn);
   }
 
   get session() {