diff --git a/users/models.py b/users/models.py
index bdd5092..56fd01e 100644
--- a/users/models.py
+++ b/users/models.py
@@ -69,3 +69,6 @@ class Adhesion(models.Model):
     class Meta:
         verbose_name = _('membership year')
         verbose_name_plural = _('membership years')
+
+    def __str__(self):
+        return f"{self.starting_in} - {self.ending_in}"