diff --git a/Library/Homebrew/formula.rbi b/Library/Homebrew/formula.rbi
index a47b034dee..f77f4c0c50 100644
--- a/Library/Homebrew/formula.rbi
+++ b/Library/Homebrew/formula.rbi
@@ -49,6 +49,6 @@ class Formula
   def env; end
   def conflicts; end
 
-  # This method is generated by `OnSystem::setup_methods!`
+  # This method is included by `OnSystem`
   def self.on_macos(&block); end
 end