diff --git a/data/core.telegram.org/tdlib/options.html b/data/core.telegram.org/tdlib/options.html
index 3472fb4454..1d86d224cf 100644
--- a/data/core.telegram.org/tdlib/options.html
+++ b/data/core.telegram.org/tdlib/options.html
@@ -156,7 +156,7 @@
 <td>language_pack_database_path</td>
 <td>String</td>
 <td>Yes</td>
-<td>Path to a database for storing language pack strings, so that this database can be shared between different accounts. By default, language pack strings are stored only in memory</td>
+<td>Path to a database for storing language pack strings, so that this database can be shared between different accounts. By default, language pack strings are stored only in memory. Changes of value of this option will be applied only after TDLib restart, so it should be set before call to <code>setTdlibParameters</code>.</td>
 </tr>
 <tr>
 <td>language_pack_id</td>