diff --git a/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi b/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
index 9740395b18..1400c1d7a7 100644
--- a/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
+++ b/Library/Homebrew/sorbet/rbi/hidden-definitions/hidden.rbi
@@ -4390,10 +4390,6 @@ 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