diff --git a/src/fellchensammlung/models.py b/src/fellchensammlung/models.py
index 6bdc095..8d43d13 100644
--- a/src/fellchensammlung/models.py
+++ b/src/fellchensammlung/models.py
@@ -7,6 +7,7 @@ from django.utils.translation import gettext_lazy as _
 from datetime import datetime
 from django.dispatch import receiver
 from django.db.models.signals import post_save
+from django.contrib.auth.models import Group
 
 from fellchensammlung.tools import misc
 
@@ -326,5 +327,3 @@ class Member(models.Model):
 
     def get_absolute_url(self):
         return reverse("member-detail", args=[str(self.user.id)])
-
-
diff --git a/src/fellchensammlung/templates/fellchensammlung/details/detail-member.html b/src/fellchensammlung/templates/fellchensammlung/details/detail-member.html
index acd0728..fabc6c3 100644
--- a/src/fellchensammlung/templates/fellchensammlung/details/detail-member.html
+++ b/src/fellchensammlung/templates/fellchensammlung/details/detail-member.html
@@ -1,4 +1,4 @@
-{% extends "library/base_generic.html" %}
+{% extends "fellchensammlung/base_generic.html" %}
 {% load i18n %}
 
 {% block content %}
diff --git a/src/fellchensammlung/urls.py b/src/fellchensammlung/urls.py
index d0e9d2a..af482a7 100644
--- a/src/fellchensammlung/urls.py
+++ b/src/fellchensammlung/urls.py
@@ -32,6 +32,7 @@ urlpatterns = [
     ###########
     ## USERS ##
     ###########
+    # ex: user/1
     path("user/<int:user_id>/", views.member_detail, name="user-detail"),
 
 ]
diff --git a/src/fellchensammlung/views.py b/src/fellchensammlung/views.py
index 9de3512..8d6d432 100644
--- a/src/fellchensammlung/views.py
+++ b/src/fellchensammlung/views.py
@@ -121,8 +121,8 @@ def report_detail_success(request, report_id):
     return report_detail(request, report_id, form_complete=True)
 
 
-def member_detail(request, user):
-    member = Member.objects.get(user=user)
+def member_detail(request, user_id):
+    member = Member.objects.get(id=user_id)
     context = {"member": member}
     return render(request, 'fellchensammlung/details/detail-member.html', context=context)