diff --git a/doc/lua_api.txt b/doc/lua_api.txt
index 29befca52..db340e415 100644
--- a/doc/lua_api.txt
+++ b/doc/lua_api.txt
@@ -1573,7 +1573,7 @@ Representations of simple things
 
     {x=num, y=num, z=num}
 
-For helper functions see "Vector helpers".
+For helper functions see "Spatial Vectors".
 
 ### `pointed_thing`
 * `{type="nothing"}`