diff --git a/td/telegram/net/NetQueryDispatcher.cpp b/td/telegram/net/NetQueryDispatcher.cpp
index 0d31a2574..3bec11b91 100644
--- a/td/telegram/net/NetQueryDispatcher.cpp
+++ b/td/telegram/net/NetQueryDispatcher.cpp
@@ -240,8 +240,7 @@ void NetQueryDispatcher::destroy_auth_keys(Promise<> promise) {
   need_destroy_auth_key_ = true;
   for (size_t i = 1; i < MAX_DC_COUNT; i++) {
     if (is_dc_inited(narrow_cast<int32>(i)) && dcs_[i - 1].id_.is_internal()) {
-      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::update_destroy_auth_key,
-                         need_destroy_auth_key_);
+      send_closure_later(dcs_[i - 1].main_session_, &SessionMultiProxy::destroy_auth_key);
     }
   }
   send_closure_later(dc_auth_manager_, &DcAuthManager::destroy, std::move(promise));
diff --git a/td/telegram/net/SessionMultiProxy.cpp b/td/telegram/net/SessionMultiProxy.cpp
index 75a12ef2f..d9368371a 100644
--- a/td/telegram/net/SessionMultiProxy.cpp
+++ b/td/telegram/net/SessionMultiProxy.cpp
@@ -61,9 +61,9 @@ void SessionMultiProxy::update_main_flag(bool is_main) {
   }
 }
 
-void SessionMultiProxy::update_destroy_auth_key(bool need_destroy_auth_key) {
-  need_destroy_auth_key_ = need_destroy_auth_key;
-  send_closure(sessions_[0].proxy, &SessionProxy::update_destroy, need_destroy_auth_key_);
+void SessionMultiProxy::destroy_auth_key() {
+  need_destroy_auth_key_ = true;
+  send_closure(sessions_[0].proxy, &SessionProxy::destroy_auth_key);
 }
 
 void SessionMultiProxy::update_session_count(int32 session_count) {
diff --git a/td/telegram/net/SessionMultiProxy.h b/td/telegram/net/SessionMultiProxy.h
index 16f3f0426..9ce259013 100644
--- a/td/telegram/net/SessionMultiProxy.h
+++ b/td/telegram/net/SessionMultiProxy.h
@@ -34,7 +34,7 @@ class SessionMultiProxy final : public Actor {
   void update_options(int32 session_count, bool use_pfs);
   void update_mtproto_header();
 
-  void update_destroy_auth_key(bool need_destroy_auth_key);
+  void destroy_auth_key();
 
  private:
   int32 session_count_ = 0;
diff --git a/td/telegram/net/SessionProxy.cpp b/td/telegram/net/SessionProxy.cpp
index e46a609c0..701611b98 100644
--- a/td/telegram/net/SessionProxy.cpp
+++ b/td/telegram/net/SessionProxy.cpp
@@ -172,12 +172,12 @@ void SessionProxy::update_main_flag(bool is_main) {
   open_session();
 }
 
-void SessionProxy::update_destroy(bool need_destroy) {
-  if (need_destroy_ == need_destroy) {
-    LOG(INFO) << "Ignore reduntant update_destroy(" << need_destroy << ")";
+void SessionProxy::destroy_auth_key() {
+  if (need_destroy_) {
+    LOG(INFO) << "Ignore reduntant destroy_auth_key";
     return;
   }
-  need_destroy_ = need_destroy;
+  need_destroy_ = true;
   close_session();
   open_session();
 }
diff --git a/td/telegram/net/SessionProxy.h b/td/telegram/net/SessionProxy.h
index af11c0158..c5b0b6686 100644
--- a/td/telegram/net/SessionProxy.h
+++ b/td/telegram/net/SessionProxy.h
@@ -37,9 +37,12 @@ class SessionProxy final : public Actor {
                bool need_destroy);
 
   void send(NetQueryPtr query);
+
   void update_main_flag(bool is_main);
+
   void update_mtproto_header();
-  void update_destroy(bool need_destroy);
+
+  void destroy_auth_key();
 
  private:
   unique_ptr<Callback> callback_;