diff --git a/src/data/roadmaps/postgresql-dba/content/104-learn-sql-concepts/103-advanced-topics/index.md b/src/data/roadmaps/postgresql-dba/content/104-learn-sql-concepts/103-advanced-topics/index.md
index 66c044c0b..efa822cbb 100644
--- a/src/data/roadmaps/postgresql-dba/content/104-learn-sql-concepts/103-advanced-topics/index.md
+++ b/src/data/roadmaps/postgresql-dba/content/104-learn-sql-concepts/103-advanced-topics/index.md
@@ -55,7 +55,7 @@ This query retrieves the entire hierarchy of categories using a recursive CTE.
 PostgreSQL has support for JSON and JSONB data types. JSON functions enable you to create, manipulate, and query JSON data directly in your SQL queries.
 
 ```sql
-SELECT json_object('name', name, 'age', age) as json_data
+SELECT json_build_object('name', name, 'age', age) as json_data
 FROM users;
 ```
 
@@ -95,4 +95,4 @@ CREATE INDEX idx_users_city ON users (city);
 
 This command creates an index on the `city` column of the `users` table to speed up queries involving that column.
 
-These advanced topics can help you become a highly skilled PostgreSQL user and tackle complex real-world problems effectively. As you become more comfortable with these advanced concepts, you will unleash the full power of SQL and PostgreSQL.
\ No newline at end of file
+These advanced topics can help you become a highly skilled PostgreSQL user and tackle complex real-world problems effectively. As you become more comfortable with these advanced concepts, you will unleash the full power of SQL and PostgreSQL.