diff --git a/td/generate/scheme/td_api.tl b/td/generate/scheme/td_api.tl
index 4b6f8923e..99337341e 100644
--- a/td/generate/scheme/td_api.tl
+++ b/td/generate/scheme/td_api.tl
@@ -1956,6 +1956,9 @@ chatEventInvitesToggled can_invite_users:Bool = ChatEventAction;
 //@description The linked_chat_id of a supergroup was changed @old_linked_chat_id Previous supergroup linked chat identifier @new_linked_chat_id New supergroup linked chat identifier
 chatEventLinkedChatChanged old_linked_chat_id:int53 new_linked_chat_id:int53 = ChatEventAction;
 
+//@description The slow_mode_delay of a supergroup was changed @old_slow_mode_delay Previous value of slow_mode_delay @new_slow_mode_delay New value of slow_mode_delay
+chatEventSlowModeDelayChanged old_slow_mode_delay:int32 new_slow_mode_delay:int32 = ChatEventAction;
+
 //@description The sign_messages setting of a channel was toggled @sign_messages New value of sign_messages
 chatEventSignMessagesToggled sign_messages:Bool = ChatEventAction;
 
diff --git a/td/generate/scheme/td_api.tlo b/td/generate/scheme/td_api.tlo
index 2f4d06664..c9d5b6076 100644
Binary files a/td/generate/scheme/td_api.tlo and b/td/generate/scheme/td_api.tlo differ
diff --git a/td/telegram/MessagesManager.cpp b/td/telegram/MessagesManager.cpp
index cf1ae05f6..b5f8535ba 100644
--- a/td/telegram/MessagesManager.cpp
+++ b/td/telegram/MessagesManager.cpp
@@ -23901,6 +23901,12 @@ tl_object_ptr<td_api::ChatEventAction> MessagesManager::get_chat_event_action_ob
       return make_tl_object<td_api::chatEventLocationChanged>(old_location.get_chat_location_object(),
                                                               new_location.get_chat_location_object());
     }
+    case telegram_api::channelAdminLogEventActionToggleSlowMode::ID: {
+      auto action = move_tl_object_as<telegram_api::channelAdminLogEventActionToggleSlowMode>(action_ptr);
+      auto old_slow_mode_delay = clamp(action->prev_value_, 0, 86400 * 366);
+      auto new_slow_mode_delay = clamp(action->new_value_, 0, 86400 * 366);
+      return make_tl_object<td_api::chatEventSlowModeDelayChanged>(old_slow_mode_delay, new_slow_mode_delay);
+    }
     default:
       UNREACHABLE();
       return nullptr;