diff --git a/doc/menu_lua_api.md b/doc/menu_lua_api.md
index b1ee18a88..4de77103c 100644
--- a/doc/menu_lua_api.md
+++ b/doc/menu_lua_api.md
@@ -109,7 +109,7 @@ of manually putting one, as different OSs use different delimiters. E.g.
 * `handle:stop()` or `core.sound_stop(handle)`
 * `core.get_mapgen_names([include_hidden=false])` -> table of map generator algorithms
     registered in the core (possible in async calls)
-* `core.get_lua_mapgens()` -> map of `[mapgen_name] = {desc = <mapgen_description>, title = <title>}` as listed
+* `core.get_lua_mapgens()` -> map of `[mapgen_name] = {desc = <mapgen_description>, title = <title>, mapgen_flags = <flags_table>}` as listed
     in `mapgen.conf`, and `nil` if they don't exist.
 * `core.get_cache_path()` -> path of cache
 * `core.get_temp_path([param])` (possible in async calls)