diff --git a/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi b/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
index c641d287c3..25a55d96e1 100644
--- a/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
+++ b/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
@@ -9669,6 +9669,10 @@ module Homebrew::API::Cask
   extend ::T::Private::Methods::SingletonMethodHooks
 end
 
+module Homebrew::API::CaskSource
+  extend ::T::Private::Methods::SingletonMethodHooks
+end
+
 module Homebrew::API::Formula
   extend ::T::Private::Methods::SingletonMethodHooks
 end