diff --git a/Diagramme-de-classes-du-domaine-%28client%29.md b/Diagramme-de-classes-du-domaine-%28client%29.md
index 3c6dbae..6335930 100644
--- a/Diagramme-de-classes-du-domaine-%28client%29.md
+++ b/Diagramme-de-classes-du-domaine-%28client%29.md
@@ -57,7 +57,7 @@ package "Model" {
   
   Bet --> "1" User : author
   
-  Participation --> "1" Bet : bet
+  Participation ..> "1" Bet : String betId
   Participation --> "1" User : user
   
   BetDetail --> "1" Bet : bet