diff --git a/database/notes/01-database-fundamentals.md b/database/notes/01-database-fundamentals.md
index d39ab33..6ca5d73 100644
--- a/database/notes/01-database-fundamentals.md
+++ b/database/notes/01-database-fundamentals.md
@@ -310,7 +310,7 @@ For example `{id, name, email, phone}` is a super key but is it a candidate key?
 
 A set of candidate keys for our student relation
 * id
-* name
+* phone
 * email
 
 #### Primary Keys
@@ -383,4 +383,4 @@ CREATE TABLE `batches` (
   KEY `mentor_id` (`mentor_id`),
   CONSTRAINT `batches_ibfk_1` FOREIGN KEY (`mentor_id`) REFERENCES `mentors` (`id`)
 );
-```
\ No newline at end of file
+```