diff --git a/rails/ensure-migrations-use-the-latest-schema.md b/rails/ensure-migrations-use-the-latest-schema.md
index d70db8d..6f1c3f6 100644
--- a/rails/ensure-migrations-use-the-latest-schema.md
+++ b/rails/ensure-migrations-use-the-latest-schema.md
@@ -6,9 +6,9 @@ another, you'll need to add a new column, move some data, and then delete the
 old column.
 
 ```ruby
-// Assume the following are defined:
-// GenericAuthor for table 'authors'
-// GenericBook for table 'books'
+# Assume the following are defined:
+# GenericAuthor for table 'authors'
+# GenericBook for table 'books'
 
 def up
   add_column :books, :genre, :string