diff --git a/elections/models.py b/elections/models.py
index 849cb7f..7b22daf 100644
--- a/elections/models.py
+++ b/elections/models.py
@@ -102,9 +102,8 @@ class User(AbstractUser):
     )
     full_name = models.CharField(_("Nom et Prénom"), max_length=150, blank=True)
 
-    @property
-    def base_username(self):
-        return self.username.split("__")[-1]
+    def get_username(self):
+        return "__".join(self.username.split("__")[1:])
 
     def can_vote(self, election):
         # Si c'est un·e utilisateur·ice CAS, iel peut voter dans les élections
diff --git a/elections/templates/elections/upload_voters.html b/elections/templates/elections/upload_voters.html
index d7873c5..ae7a12d 100644
--- a/elections/templates/elections/upload_voters.html
+++ b/elections/templates/elections/upload_voters.html
@@ -110,7 +110,7 @@
       <tbody>
         {% for v in voters %}
         <tr>
-          <td>{{ v.base_username }}</td>
+          <td>{{ v.get_username }}</td>
           <td>{{ v.full_name }}</td>
           <td>{{ v.email }}</td>
         </tr>
diff --git a/elections/utils.py b/elections/utils.py
index 8c59921..9beda7d 100644
--- a/elections/utils.py
+++ b/elections/utils.py
@@ -103,7 +103,7 @@ def send_mail(election, mail_form):
                 body=mail_form.cleaned_data["message"].format(
                     full_name=v.full_name,
                     election_url=url,
-                    username=v.base_username,
+                    username=v.get_username,
                     password=password,
                 ),
                 to=[v.email],
diff --git a/shared/templates/base.html b/shared/templates/base.html
index b32c4ea..dc74653 100644
--- a/shared/templates/base.html
+++ b/shared/templates/base.html
@@ -50,7 +50,7 @@
       {% if user.is_authenticated %}
       <div class="level-item mr-5">
         <div class="tag">
-          {% blocktrans with name=user.base_username connection=user.connection_method %}Connecté·e en tant que {{ name }} par {{ connection }}{% endblocktrans %}
+          {% blocktrans with name=user.get_username connection=user.connection_method %}Connecté·e en tant que {{ name }} par {{ connection }}{% endblocktrans %}
         </div>
       </div>