diff --git a/td/telegram/net/SessionMultiProxy.h b/td/telegram/net/SessionMultiProxy.h
index 79b54c6a..92f0e975 100644
--- a/td/telegram/net/SessionMultiProxy.h
+++ b/td/telegram/net/SessionMultiProxy.h
@@ -37,7 +37,6 @@ class SessionMultiProxy : public Actor {
   void update_destroy_auth_key(bool need_destroy_auth_key);
 
  private:
-  size_t pos_ = 0;
   int32 session_count_ = 0;
   std::shared_ptr<AuthDataShared> auth_data_;
   bool is_main_ = false;