diff --git a/lib/elixir/pages/patterns-and-guards.md b/lib/elixir/pages/patterns-and-guards.md
index f7e28319622..aec6280f3f4 100644
--- a/lib/elixir/pages/patterns-and-guards.md
+++ b/lib/elixir/pages/patterns-and-guards.md
@@ -284,6 +284,7 @@ You can find the built-in list of guards [in the `Kernel` module](Kernel.html#gu
   * [`in`](`in/2`) and [`not in`](`in/2`) operators (as long as the right-hand side is a list or a range)
   * "type-check" functions (`is_list/1`, `is_number/1`, and the like)
   * functions that work on built-in datatypes (`abs/1`, `hd/1`, `map_size/1`, and others)
+  * the `map.field` syntax
 
 The module `Bitwise` also includes a handful of [Erlang bitwise operations as guards](Bitwise.html#guards).