diff --git a/Library/Homebrew/install_renamed.rb b/Library/Homebrew/install_renamed.rb
index 9fa6f37fa2..ac891273a0 100644
--- a/Library/Homebrew/install_renamed.rb
+++ b/Library/Homebrew/install_renamed.rb
@@ -1,5 +1,8 @@
 # frozen_string_literal: true
 
+# Helper module for installing default files.
+#
+# @api private
 module InstallRenamed
   def install_p(_, new_basename)
     super do |src, dst|