diff --git a/apps/member/forms.py b/apps/member/forms.py
index b34a3260..e546d652 100644
--- a/apps/member/forms.py
+++ b/apps/member/forms.py
@@ -25,6 +25,12 @@ class ProfileForm(forms.ModelForm):
     A form for the extras field provided by the :model:`member.Profile` model.
     """
 
+    def save(self, commit=True):
+        if not self.instance.section or (("department" in self.changed_data
+                                         or "promotion" in self.changed_data) and "section" not in self.changed_data):
+            self.instance.section = self.instance.section_generated
+        return super().save(commit)
+
     class Meta:
         model = Profile
         fields = '__all__'
diff --git a/apps/member/models.py b/apps/member/models.py
index 4be1b1a4..f4b4865d 100644
--- a/apps/member/models.py
+++ b/apps/member/models.py
@@ -3,6 +3,7 @@
 
 import datetime
 import os
+from math import ceil
 
 from django.conf import settings
 from django.contrib.auth.models import User
@@ -23,18 +24,20 @@ class Profile(models.Model):
 
     We do not want to patch the Django Contrib :model:`auth.User`model;
     so this model add an user profile with additional information.
-
     """
+
     user = models.OneToOneField(
         settings.AUTH_USER_MODEL,
         on_delete=models.CASCADE,
     )
+
     phone_number = models.CharField(
         verbose_name=_('phone number'),
         max_length=50,
         blank=True,
         null=True,
     )
+
     section = models.CharField(
         verbose_name=_('section'),
         help_text=_('e.g. "1A0", "9A♥", "SAPHIRE"'),
@@ -42,12 +45,44 @@ class Profile(models.Model):
         blank=True,
         null=True,
     )
+
+    department = models.CharField(
+        max_length=8,
+        verbose_name=_("department"),
+        choices=[
+            ('A0', _("Informatics (A0)")),
+            ('A1', _("Mathematics (A1)")),
+            ('A2', _("Physics (A2)")),
+            ("A'2", _("Applied physics (A'2)")),
+            ('A''2', _("Chemistry (A''2)")),
+            ('A3', _("Biology (A3)")),
+            ('B1234', _("SAPHIRE (B1234)")),
+            ('B1', _("Mechanics (B1)")),
+            ('B2', _("Civil engineering (B2)")),
+            ('B3', _("Mechanical engineering (B3)")),
+            ('B4', _("EEA (B4)")),
+            ('C', _("Design (C)")),
+            ('D2', _("Economy-management (D2)")),
+            ('D3', _("Social sciences (D3)")),
+            ('E', _("English (E)")),
+            ('EXT', _("External (EXT)")),
+        ]
+    )
+
+    promotion = models.PositiveIntegerField(
+        null=True,
+        default=datetime.date.today().year,
+        verbose_name=_("promotion"),
+        help_text=_("Year of entry to the school (None if not ENS student)"),
+    )
+
     address = models.CharField(
         verbose_name=_('address'),
         max_length=255,
         blank=True,
         null=True,
     )
+
     paid = models.BooleanField(
         verbose_name=_("paid"),
         help_text=_("Tells if the user receive a salary."),
@@ -64,6 +99,23 @@ class Profile(models.Model):
         default=False,
     )
 
+    @property
+    def ens_year(self):
+        """
+        Number of years since the 1st august of the entry year, rounded up.
+        """
+        if self.promotion is None:
+            return 0
+        today = datetime.date.today()
+        years = today.year - self.promotion
+        if today.month >= 8:
+            years += 1
+        return years
+
+    @property
+    def section_generated(self):
+        return str(self.ens_year) + self.department
+
     @property
     def soge(self):
         if "treasury" in settings.INSTALLED_APPS:
diff --git a/apps/member/views.py b/apps/member/views.py
index 4a9f1995..04742f32 100644
--- a/apps/member/views.py
+++ b/apps/member/views.py
@@ -526,6 +526,13 @@ class ClubAddMemberView(ProtectQuerysetMixin, LoginRequiredMixin, CreateView):
 
         # Now, all is fine, the membership can be created.
 
+        if club.name == "BDE":
+            # When we renew the BDE membership, we update the profile section.
+            # We could automate that and remove the section field from the Profile model,
+            # but with this way users can customize their section as they want.
+            user.profile.section = user.profile.section_generated
+            user.profile.save()
+
         # Credit note before the membership is created.
         if credit_amount > 0:
             if not last_name or not first_name or (not bank and credit_type.special_type == "Chèque"):
diff --git a/templates/wei/weimembership_form.html b/templates/wei/weimembership_form.html
index c1a5d7fe..0cde7fe6 100644
--- a/templates/wei/weimembership_form.html
+++ b/templates/wei/weimembership_form.html
@@ -33,6 +33,12 @@
                     </dd>
                 {% endif %}
 
+                <dt class="col-xl-6">{% trans 'department'|capfirst %}</dt>
+                <dd class="col-xl-6">{{ registration.user.profile.department }}</dd>
+
+                <dt class="col-xl-6">{% trans 'ENS year'|capfirst %}</dt>
+                <dd class="col-xl-6">{{ registration.user.profile.ens_year }}</dd>
+
                 <dt class="col-xl-6">{% trans 'section'|capfirst %}</dt>
                 <dd class="col-xl-6">{{ registration.user.profile.section }}</dd>