diff --git a/fet2020/members/models.py b/fet2020/members/models.py
index c4ea5d37..3f7b280f 100644
--- a/fet2020/members/models.py
+++ b/fet2020/members/models.py
@@ -88,8 +88,8 @@ class MemberManager(models.Manager):
 class Member(models.Model):
     firstname = models.CharField("Vorname", max_length=128)
     surname = models.CharField("Nachname", max_length=128)
-    nickname = models.CharField("Spitzname", unique=True, max_length=128)
-    mailaccount = models.CharField("Mailadresse", max_length=128)
+    nickname = models.CharField("Spitzname",  max_length=128)
+    mailaccount = models.CharField("Mailadresse", unique=True, max_length=128)
 
     class MemberRole(models.TextChoices):
         ACTIVE = 'A', _('Active')
diff --git a/fet2020/members/serializers.py b/fet2020/members/serializers.py
index 21b51005..204f306b 100644
--- a/fet2020/members/serializers.py
+++ b/fet2020/members/serializers.py
@@ -51,7 +51,7 @@ class JobMemberSerializer(serializers.HyperlinkedModelSerializer):
         slug_field='slug',queryset = Job.objects
      )
     member= serializers.SlugRelatedField(
-        slug_field='nickname',queryset = Member.objects
+        slug_field='mailaccount',queryset = Member.objects
      )
     class Meta:
         model = JobMember