diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md
index ad1eeffca3..0f407553c4 100644
--- a/guides/source/active_record_querying.md
+++ b/guides/source/active_record_querying.md
@@ -1254,8 +1254,8 @@ This produces:
 
 ```sql
 SELECT books.* FROM books
-  INNER JOIN reviews ON reviews.book_id = book.id
-  INNER JOIN customer ON customers.id = reviews.id
+  INNER JOIN reviews ON reviews.book_id = books.id
+  INNER JOIN customers ON customers.id = reviews.customer_id
 ```
 
 Or, in English: "return all books that have a review by a customer."