diff --git a/Library/Homebrew/rubocops/cask/on_system_conditionals.rb b/Library/Homebrew/rubocops/cask/on_system_conditionals.rb
index cb3abd0a79..1981db0550 100644
--- a/Library/Homebrew/rubocops/cask/on_system_conditionals.rb
+++ b/Library/Homebrew/rubocops/cask/on_system_conditionals.rb
@@ -41,6 +41,7 @@ module RuboCop
           end
 
           audit_arch_conditionals(cask_body)
+          audit_macos_version_conditionals(cask_body)
           simplify_sha256_stanzas
         end