diff --git a/README.adoc b/README.adoc
index cb5b0333..2cd87f52 100644
--- a/README.adoc
+++ b/README.adoc
@@ -3595,13 +3595,11 @@ end
 
 # good
 module SomeModule
-  module_function
-
-  def some_method
+  def self.some_method
     # body omitted
   end
 
-  def some_other_method
+  def self.some_other_method
     # body omitted
   end
 end