diff --git a/src/gui/lua/lua_curl.cpp b/src/gui/lua/lua_curl.cpp
index cb9d49fea..40facd5a2 100644
--- a/src/gui/lua/lua_curl.cpp
+++ b/src/gui/lua/lua_curl.cpp
@@ -154,6 +154,7 @@ int CLuaInstCurl::CurlDownload(lua_State *L)
 	useProxy	bool		true (default)
 	followRedir	bool		true
 	maxRedirs	number		20
+	httpheader	table		empty
 */
 
 /*