diff --git a/doc/source/architecture/erdmodel.plantuml.txt b/doc/source/architecture/erdmodel.plantuml.txt
index e1d7750..ad63d37 100644
--- a/doc/source/architecture/erdmodel.plantuml.txt
+++ b/doc/source/architecture/erdmodel.plantuml.txt
@@ -88,11 +88,17 @@ entity contact_types {
 
 user ||--o{ user_skill : user_has_skills
 user_skill ||-o{ skill
+
 user ||--o{ user_experience : user_has_experience
 user_experience ||-o{ experience : user_experience_is_tagged_with
+
 user ||-o{ user_language : user_speaks_language
 user_language||-{ language
+
 user ||-o{ user_search_topic
 user_search_topic ||-o{ topic
 
+user ||-o{ user_contact
+user_contact ||-o{ contact_types
+
 @enduml