diff --git a/doc/en/scripting/builtins/libnetwork.md b/doc/en/scripting/builtins/libnetwork.md
index c7a39ac6..515488f7 100644
--- a/doc/en/scripting/builtins/libnetwork.md
+++ b/doc/en/scripting/builtins/libnetwork.md
@@ -132,3 +132,10 @@ network.get_total_upload() --> int
 -- in bytes.
 network.get_total_download() --> int
 ```
+
+## Other
+
+```lua
+-- Looks for a free port to use.
+network.find_free_port() --> int
+```
diff --git a/doc/ru/scripting/builtins/libnetwork.md b/doc/ru/scripting/builtins/libnetwork.md
index b7b1bdf5..269b1615 100644
--- a/doc/ru/scripting/builtins/libnetwork.md
+++ b/doc/ru/scripting/builtins/libnetwork.md
@@ -197,3 +197,10 @@ network.get_total_upload() --> int
 -- в байтах.
 network.get_total_download() --> int
 ```
+
+## Другое
+
+```lua
+-- Ищет свободный для использования порт.
+network.find_free_port() --> int
+```