diff --git a/index.js b/index.js
index e2998dd..bc52968 100644
--- a/index.js
+++ b/index.js
@@ -605,14 +605,14 @@ module.exports = class Protomux {
     const info = this._get(protocol, id);
 
     if (this._slave) {
-      await this._mux.pullRemote();
+      await this.pullRemote();
     }
 
     // allow the remote to grow the ids by one
     if (this._remote.length === rid) {
       this._remote.push(null);
       if (this._slave) {
-        await this._mux.pushRemote(this._remote.length - 1);
+        await this.pushRemote(this._remote.length - 1);
       }
     }
 
@@ -626,12 +626,12 @@ module.exports = class Protomux {
 
       if (session === null) {
         if (this._slave) {
-          await this._mux.pullFree();
+          await this.pullFree();
         }
         // we already closed the channel - ignore
         this._free.push(localId - 1);
         if (this._slave) {
-          await this._mux.pushFree(localId - 1);
+          await this.pushFree(localId - 1);
         }
         return;
       }
@@ -658,7 +658,7 @@ module.exports = class Protomux {
     info.incoming.push(remoteId);
 
     if (this._slave) {
-      await this._mux.pushRemotes();
+      await this.pushRemotes();
     }
 
     this._requestSession(protocol, id, info).catch(this._safeDestroyBound);
@@ -677,12 +677,12 @@ module.exports = class Protomux {
       const session = this._local[localId - 1];
 
       if (this._slave) {
-        await this._mux.pullFree(localId - 1);
+        await this.pullFree(localId - 1);
       }
 
       this._free.push(localId - 1);
       if (this._slave) {
-        await this._mux.pushFree(localId - 1);
+        await this.pushFree(localId - 1);
       }
 
       if (session !== null) session._close(true);