diff --git a/back-end/src/templates/model.ejs b/back-end/src/templates/model.ejs
index 6bbd65e..6d6e740 100644
--- a/back-end/src/templates/model.ejs
+++ b/back-end/src/templates/model.ejs
@@ -23,7 +23,7 @@
 
         id : <%= model.id %>
         url : <%= model.url %>
-        creator : <%= model.creator.name %>
+        creator : <%- model.creator !== undefined ? model.creator.name : 'system' %>
         inheritFrom : <%= model.inheritFrom %>
         <h2>Liste des pièces nécessaires</h2>
         <div class="table">