diff --git a/docs/manual.en.md b/docs/manual.en.md
index 32d4d1d..30260e6 100644
--- a/docs/manual.en.md
+++ b/docs/manual.en.md
@@ -2560,7 +2560,7 @@ If the specified level does not exist, it returns `nil`.
 ```
 function http_dissect_req(http)
 function http_dissect_reply(http)
-function http_reconstruct_req(hdis, unixeol)
+function http_reconstruct_req(hdis[, unixeol])
 ```
 
 Parses an HTTP request or response. The `http` parameter is a multi-line string.
diff --git a/docs/manual.md b/docs/manual.md
index 342f87d..ae17862 100644
--- a/docs/manual.md
+++ b/docs/manual.md
@@ -2731,7 +2731,7 @@ function dissect_nld(domain, level)
 ```
 function http_dissect_req(http)
 function http_dissect_reply(http)
-function http_reconstruct_req(hdis, unixeol)
+function http_reconstruct_req(hdis[, unixeol])
 ```
 
 Разборка HTTP запроса или ответа http. http представляет собой многострочный текст.