diff --git a/td/telegram/ContactsManager.cpp b/td/telegram/ContactsManager.cpp
index f240bf742..719f0e3d5 100644
--- a/td/telegram/ContactsManager.cpp
+++ b/td/telegram/ContactsManager.cpp
@@ -5461,8 +5461,8 @@ UserId ContactsManager::add_channel_bot_user() {
   return user_id;
 }
 
-ChatId ContactsManager::get_unsupported_chat_id() {
-  return ChatId(static_cast<int64>(G()->is_test_dc() ? 10304875 : 1535424647));
+ChannelId ContactsManager::get_unsupported_channel_id() {
+  return ChannelId(static_cast<int64>(G()->is_test_dc() ? 10304875 : 1535424647));
 }
 
 int32 ContactsManager::get_user_was_online(const User *u, UserId user_id, int32 unix_time) const {
diff --git a/td/telegram/ContactsManager.h b/td/telegram/ContactsManager.h
index 482b3ef0b..3f0569954 100644
--- a/td/telegram/ContactsManager.h
+++ b/td/telegram/ContactsManager.h
@@ -335,7 +335,7 @@ class ContactsManager final : public Actor {
 
   UserId add_channel_bot_user();
 
-  static ChatId get_unsupported_chat_id();
+  static ChannelId get_unsupported_channel_id();
 
   void on_update_username_is_active(UserId user_id, string &&username, bool is_active, Promise<Unit> &&promise);
 
diff --git a/td/telegram/UpdatesManager.cpp b/td/telegram/UpdatesManager.cpp
index 36e69643c..997398fe5 100644
--- a/td/telegram/UpdatesManager.cpp
+++ b/td/telegram/UpdatesManager.cpp
@@ -1627,7 +1627,7 @@ vector<DialogId> UpdatesManager::get_chat_dialog_ids(const telegram_api::Updates
     }
   }
   if (dialog_ids.size() > 1) {
-    td::remove(dialog_ids, DialogId(ContactsManager::get_unsupported_chat_id()));
+    td::remove(dialog_ids, DialogId(ContactsManager::get_unsupported_channel_id()));
   }
   return dialog_ids;
 }