diff --git a/test_settings.py b/test_settings.py
index e1daff6..26bc9c6 100644
--- a/test_settings.py
+++ b/test_settings.py
@@ -13,7 +13,7 @@ EMAIL_BACKEND = 'django.core.mail.backends.console.EmailBackend'
 
 # Document
 TODO_STAFF_ONLY = False
-TODO_DEFAULT_LIST_ID = None
+TODO_DEFAULT_LIST_SLUG = 'tickets'
 TODO_DEFAULT_ASSIGNEE = None
 TODO_PUBLIC_SUBMIT_REDIRECT = '/'
 
diff --git a/todo/management/commands/hopper.py b/todo/management/commands/hopper.py
index 129be01..f001b41 100644
--- a/todo/management/commands/hopper.py
+++ b/todo/management/commands/hopper.py
@@ -86,9 +86,10 @@ class Command(BaseCommand):
                 user.groups.add(bw_group)
                 user.groups.add(sd_group)
 
-        # Create lists with tasks
+        # Create lists with tasks, plus one with fixed name for externally added tasks
         TaskListFactory.create_batch(5, group=bw_group)
         TaskListFactory.create_batch(5, group=sd_group)
+        TaskListFactory.create(name="Public Tickets", slug="tickets", group=bw_group)
 
         print("For each of two groups, created fake tasks in each of {} fake lists.".format(num_lists))
 
diff --git a/todo/tests/test_views.py b/todo/tests/test_views.py
index 2415d17..74724d1 100644
--- a/todo/tests/test_views.py
+++ b/todo/tests/test_views.py
@@ -32,8 +32,8 @@ def test_view_reorder(todo_setup, admin_client):
 
 def test_view_external_add(todo_setup, admin_client, settings):
     default_list = TaskList.objects.first()
-    settings.TODO_DEFAULT_LIST_ID = default_list.id
-    assert settings.TODO_DEFAULT_LIST_ID == default_list.id
+    settings.TODO_DEFAULT_LIST_SLUG = default_list.slug
+    assert settings.TODO_DEFAULT_LIST_SLUG == default_list.slug
     url = reverse('todo:external_add')
     response = admin_client.get(url)
     assert response.status_code == 200
diff --git a/todo/views.py b/todo/views.py
index 4bbe958..9060185 100644
--- a/todo/views.py
+++ b/todo/views.py
@@ -349,11 +349,11 @@ def external_add(request) -> HttpResponse:
     Publicly filed tickets are unassigned unless settings.DEFAULT_ASSIGNEE exists.
     """
 
-    if not settings.TODO_DEFAULT_LIST_ID:
-        raise RuntimeError("This feature requires TODO_DEFAULT_LIST_ID: in settings. See documentation.")
+    if not settings.TODO_DEFAULT_LIST_SLUG:
+        raise RuntimeError("This feature requires TODO_DEFAULT_LIST_SLUG: in settings. See documentation.")
 
-    if not TaskList.objects.filter(id=settings.TODO_DEFAULT_LIST_ID).exists():
-        raise RuntimeError("There is no TaskList with ID specified for DEFAULT_LIST_ID in settings.")
+    if not TaskList.objects.filter(slug=settings.TODO_DEFAULT_LIST_SLUG).exists():
+        raise RuntimeError("There is no TaskList with slug specified for TODO_DEFAULT_LIST_SLUG in settings.")
 
     if request.POST:
         form = AddExternalTaskForm(request.POST)
@@ -361,7 +361,7 @@ def external_add(request) -> HttpResponse:
         if form.is_valid():
             current_site = Site.objects.get_current()
             task = form.save(commit=False)
-            task.task_list = TaskList.objects.get(id=settings.TODO_DEFAULT_LIST_ID)
+            task.task_list = TaskList.objects.get(slug=settings.TODO_DEFAULT_LIST_SLUG)
             task.created_by = request.user
             if settings.TODO_DEFAULT_ASSIGNEE:
                 task.assigned_to = User.objects.get(username=settings.TODO_DEFAULT_ASSIGNEE)