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-rw-r--r--guides/source/migrations.md4
1 files changed, 2 insertions, 2 deletions
diff --git a/guides/source/migrations.md b/guides/source/migrations.md
index eb0cfd9451..508e52a77c 100644
--- a/guides/source/migrations.md
+++ b/guides/source/migrations.md
@@ -390,8 +390,8 @@ will create a `categorization` table.
```ruby
create_join_table :products, :categories do |t|
- t.index :products
- t.index :categories
+ t.index :product_id
+ t.index :category_id
end
```