diff --git a/documentation/src/main/asciidoc/userguide/chapters/domain/extras/collections/collections-map-custom-key-type-sql-example.sql b/documentation/src/main/asciidoc/userguide/chapters/domain/extras/collections/collections-map-custom-key-type-sql-example.sql
index d8fe7c6424..6674e0bdf0 100644
--- a/documentation/src/main/asciidoc/userguide/chapters/domain/extras/collections/collections-map-custom-key-type-sql-example.sql
+++ b/documentation/src/main/asciidoc/userguide/chapters/domain/extras/collections/collections-map-custom-key-type-sql-example.sql
@@ -7,10 +7,10 @@ create table call_register (
     person_id int8 not null,
     phone_number int4,
     call_timestamp_epoch int8 not null,
-    primary key (person_id, call_key)
+    primary key (person_id, call_timestamp_epoch)
 )
 
 alter table if exists call_register
     add constraint FKsn58spsregnjyn8xt61qkxsub
     foreign key (person_id)
-    references person
\ No newline at end of file
+    references person