diff --git a/docs/dev/db-schema.plantuml b/docs/dev/db-schema.plantuml
index 130bcb63f..9527984f5 100644
--- a/docs/dev/db-schema.plantuml
+++ b/docs/dev/db-schema.plantuml
@@ -115,11 +115,11 @@ entity "Group" {
   *canEdit : boolean
 }
 
-Note "1" -- "1..*" Revision
-Revision "0..*" -- "0..*" Authorship
+Note "1" - "1..*" Revision
+Revision "0..*" - "0..*" Authorship
 (Revision, Authorship) .. RevisionAuthorship
 Authorship "0..*" -- "1" User
-Note "1" -- "0..*" User : owner
+Note "0..*" -- "1" User : owner
 Note "1" -- "0..*" NoteUserPermission
 NoteUserPermission "1" -- "1" User
 Note "1" -- "0..*" NoteGroupPermission