diff --git a/td/telegram/ContactsManager.cpp b/td/telegram/ContactsManager.cpp
index f5499c069..f35cf2888 100644
--- a/td/telegram/ContactsManager.cpp
+++ b/td/telegram/ContactsManager.cpp
@@ -11841,7 +11841,8 @@ bool ContactsManager::on_get_channel_error(ChannelId channel_id, const Status &s
 
     auto c = get_channel(channel_id);
     if (c == nullptr) {
-      if (td_->auth_manager_->is_bot() && source == "GetChannelsQuery") {
+      if (source == "GetChannelDifferenceQuery" || (td_->auth_manager_->is_bot() && source == "GetChannelsQuery")) {
+        // get channel difference after restart
         // get channel from server by its identifier
         return true;
       }
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index fb7dbc52a..775353c2c 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -4681,7 +4681,7 @@ class GetChannelDifferenceQuery final : public Td::ResultHandler {
 
   void on_error(Status status) final {
     if (!td_->messages_manager_->on_get_dialog_error(dialog_id_, status, "GetChannelDifferenceQuery")) {
-      LOG(ERROR) << "Receive updates.getChannelDifference error for " << dialog_id_ << " with pts " << pts_
+      LOG(ERROR) << "Receive error for GetChannelDifferenceQuery for " << dialog_id_ << " with pts " << pts_
                  << " and limit " << limit_ << ": " << status;
     }
     td_->messages_manager_->on_get_channel_difference(dialog_id_, pts_, limit_, nullptr);