diff --git a/docs/plugins.md b/docs/plugins.md
index c7500c10d9..03d3d44dfa 100644
--- a/docs/plugins.md
+++ b/docs/plugins.md
@@ -36,3 +36,7 @@ object that is useful for additional configuration.
 
 Public methods in [`Puma::Plugin`](../lib/puma/plugin.rb) are treated as a
 public API for plugins.
+
+## Binder hooks
+
+There's `Puma::Binder#before_parse` method that allows to add proc to run before the body of `Puma::Binder#parse`.
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