diff --git a/greg/api/serializers/person.py b/greg/api/serializers/person.py
index e5f52711164793199d3f755ddc917972e1417332..d1e63341ddfb7cf8cdc471042369589a9bcfe17c 100644
--- a/greg/api/serializers/person.py
+++ b/greg/api/serializers/person.py
@@ -15,8 +15,8 @@ class RoleSerializer(serializers.ModelSerializer):
             "id",
             "start_date",
             "end_date",
-            "registered_by",
-            "unit",
+            "sponsor_id",
+            "orgunit_id",
             "created",
             "updated",
             "type",
diff --git a/greg/api/views/sponsor.py b/greg/api/views/sponsor.py
index 6e149fea441514b7d3a58aa2928da00e6d53e080..5b4ac38b2832873d558cf78135db2125a994b3f4 100644
--- a/greg/api/views/sponsor.py
+++ b/greg/api/views/sponsor.py
@@ -39,5 +39,5 @@ class SponsorGuestsViewSet(mixins.ListModelMixin, GenericViewSet):
         if not self.kwargs:
             return qs.none()
         sponsor_id = self.kwargs["sponsor_id"]
-        qs = qs.filter(roles__registered_by=sponsor_id).order_by("id")
+        qs = qs.filter(roles__sponsor_id=sponsor_id).order_by("id")
         return qs
diff --git a/greg/migrations/0006_column_names.py b/greg/migrations/0006_column_names.py
new file mode 100644
index 0000000000000000000000000000000000000000..24638a40ee97a6572f522f602b9716e527bbbd8e
--- /dev/null
+++ b/greg/migrations/0006_column_names.py
@@ -0,0 +1,31 @@
+# Generated by Django 3.2.7 on 2021-09-23 08:42
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('greg', '0005_person_user'),
+    ]
+
+    operations = [
+        migrations.RemoveConstraint(
+            model_name='role',
+            name='person_role_type_unique',
+        ),
+        migrations.RenameField(
+            model_name='role',
+            old_name='unit',
+            new_name='orgunit_id',
+        ),
+        migrations.RenameField(
+            model_name='role',
+            old_name='registered_by',
+            new_name='sponsor_id',
+        ),
+        migrations.AddConstraint(
+            model_name='role',
+            constraint=models.UniqueConstraint(fields=('person_id', 'type_id', 'orgunit_id', 'start_date', 'end_date'), name='person_role_type_unique'),
+        ),
+    ]
diff --git a/greg/models.py b/greg/models.py
index dd575a825db7585e07b4eebd77375916af7680dc..363cb2cd5e17b3e2d3bc2a28e01c95187418c99a 100644
--- a/greg/models.py
+++ b/greg/models.py
@@ -166,7 +166,7 @@ class Role(BaseModel):
     type = models.ForeignKey(
         "RoleType", on_delete=models.PROTECT, related_name="persons"
     )
-    unit = models.ForeignKey(
+    orgunit_id = models.ForeignKey(
         "OrganizationalUnit", on_delete=models.PROTECT, related_name="unit_person_role"
     )
     # The start date can be null for people that are already
@@ -176,14 +176,14 @@ class Role(BaseModel):
     contact_person_unit = models.TextField(blank=True)
     comments = models.TextField(blank=True)
     available_in_search = models.BooleanField(default=False)
-    registered_by = models.ForeignKey(
+    sponsor_id = models.ForeignKey(
         "Sponsor", on_delete=models.PROTECT, related_name="sponsor_role"
     )
 
     class Meta:
         constraints = [
             models.UniqueConstraint(
-                fields=["person_id", "type_id", "unit_id", "start_date", "end_date"],
+                fields=["person_id", "type_id", "orgunit_id", "start_date", "end_date"],
                 name="person_role_type_unique",
             )
         ]
diff --git a/greg/tests/api/test_person.py b/greg/tests/api/test_person.py
index 2a8fe2516c32f35786bb75568fdbcab81022407c..a1268c1e04d318f869d85cd000b5393601bfe6c4 100644
--- a/greg/tests/api/test_person.py
+++ b/greg/tests/api/test_person.py
@@ -50,8 +50,8 @@ def role_data_guest(
         "type": "Test Guest",
         "start_date": "2021-06-10",
         "end_date": "2021-08-10",
-        "registered_by": sponsor_bar.id,
-        "unit": unit_foo.id,
+        "sponsor_id": sponsor_bar.id,
+        "orgunit_id": unit_foo.id,
     }
 
 
@@ -126,8 +126,8 @@ def test_add_role(
         "type": "visiting_professor",
         "start_date": "2021-06-10",
         "end_date": "2021-08-10",
-        "registered_by": "1",
-        "unit": "1",
+        "sponsor_id": "1",
+        "orgunit_id": "1",
     }
     response = client.post(url, role_data)
 
@@ -420,8 +420,8 @@ def test_add_duplicate_role_fails(client, person_foo: Person, role_person_foo):
         "type": role_person_foo.type.identifier,
         "start_date": role_person_foo.start_date,
         "end_date": role_person_foo.end_date,
-        "registered_by": role_person_foo.registered_by.id,
-        "unit": role_person_foo.unit_id,
+        "sponsor_id": role_person_foo.sponsor_id.id,
+        "orgunit_id": role_person_foo.unit_id,
     }
     response = client.post(url, role_data)
     # If the role cannot be create the return code is 400
@@ -448,8 +448,8 @@ def test_filter_active_includes_person_with_active_role(
         person=person_foo,
         type=role_type_test_guest,
         end_date=date_today + datetime.timedelta(days=1),
-        registered_by=sponsor_guy,
-        unit=unit_foo,
+        sponsor_id=sponsor_guy,
+        orgunit_id=unit_foo,
     )
 
     url = reverse("v1:person-list")
@@ -486,8 +486,8 @@ def test_filter_active_value_false(
         person=person_foo,
         type=role_type_test_guest,
         end_date=date_today - datetime.timedelta(days=1),
-        registered_by=sponsor_guy,
-        unit=unit_foo,
+        sponsor_id=sponsor_guy,
+        orgunit_id=unit_foo,
     )
 
     url = reverse("v1:person-list")
diff --git a/greg/tests/conftest.py b/greg/tests/conftest.py
index 2d3fdfb099e3e3c9da3776edc605d8084bbd3d2a..71a08c36919fc2281a99ec0f4050c5124950469a 100644
--- a/greg/tests/conftest.py
+++ b/greg/tests/conftest.py
@@ -123,8 +123,8 @@ def role_person_foo(
         type=role_type_test_guest,
         start_date="2021-08-02",
         end_date="2021-08-06",
-        registered_by=sponsor_guy,
-        unit=unit_foo,
+        sponsor_id=sponsor_guy,
+        orgunit_id=unit_foo,
     )
     return Role.objects.get(id=role.id)
 
diff --git a/greg/tests/models/test_person.py b/greg/tests/models/test_person.py
index e193a9b4276e41cb4a23335c0a0496ef8960e2b8..44d451b42e1b1e0efb6e15b35335be2a9459b69b 100644
--- a/greg/tests/models/test_person.py
+++ b/greg/tests/models/test_person.py
@@ -94,14 +94,14 @@ def test_add_multiple_roles_to_person(
     role_with(
         person=person,
         type=role_type_foo,
-        unit=ou,
-        registered_by=Sponsor.objects.create(feide_id="foosponsor@uio.no"),
+        orgunit_id=ou,
+        sponsor_id=Sponsor.objects.create(feide_id="foosponsor@uio.no"),
     )
     role_with(
         person=person,
         type=role_type_bar,
-        unit=ou,
-        registered_by=Sponsor.objects.create(feide_id="barsponsor@uio.no"),
+        orgunit_id=ou,
+        sponsor_id=Sponsor.objects.create(feide_id="barsponsor@uio.no"),
     )
     assert person.roles.count() == 2
 
diff --git a/greg/tests/populate_database.py b/greg/tests/populate_database.py
index 605a67033c1de70aef9f5cb24f370e86c574761a..c86d746b3e2419c18283c47b6295119c254e973e 100644
--- a/greg/tests/populate_database.py
+++ b/greg/tests/populate_database.py
@@ -154,7 +154,7 @@ class DatabasePopulation:
                     ),
                     contact_person_unit=self.faker.name(),
                     available_in_search=self.random.random() > 0.5,
-                    registered_by=random.choice(self.sponsors),
+                    sponsor_id=random.choice(self.sponsors),
                 )
                 person_role_count += 1
             except IntegrityError:
diff --git a/greg/tests/test_expire_role.py b/greg/tests/test_expire_role.py
index df240644cc9b1970e44a8b49560f6b21b816d228..77ca940cf723736b657488e7975c003d7d25e307 100644
--- a/greg/tests/test_expire_role.py
+++ b/greg/tests/test_expire_role.py
@@ -33,12 +33,12 @@ def role(
     return Role.objects.create(
         person=person,
         type=role_type_bar,
-        unit=unit_foo,
+        orgunit_id=unit_foo,
         start_date="2020-03-05",
         end_date=datetime.today() + timedelta(days=30),
         contact_person_unit="Contact Person",
         available_in_search=True,
-        registered_by=sponsor_guy,
+        sponsor_id=sponsor_guy,
     )
 
 
diff --git a/greg/tests/test_notifications.py b/greg/tests/test_notifications.py
index f86dbc02383692f22adbe16d9bb68a863321c93d..7fcbb4494aed29bc9d35d7404676d37dec89dfb0 100644
--- a/greg/tests/test_notifications.py
+++ b/greg/tests/test_notifications.py
@@ -73,8 +73,8 @@ def test_role_add_notification(
         type=role_type_foo,
         start_date="2021-05-06",
         end_date="2021-10-20",
-        unit=org_unit_bar,
-        registered_by=sponsor,
+        orgunit_id=org_unit_bar,
+        sponsor_id=sponsor,
     )
     notifications = Notification.objects.filter(object_type="Role")
     assert len(notifications) == 1
@@ -96,8 +96,8 @@ def test_role_update_notification(
         type=role_type_foo,
         start_date="2021-05-06",
         end_date="2021-10-20",
-        unit=org_unit_bar,
-        registered_by=sponsor,
+        orgunit_id=org_unit_bar,
+        sponsor_id=sponsor,
     )
     assert len(person.roles.all()) == 1
     person_role = person.roles.all()[0]
@@ -123,8 +123,8 @@ def test_role_delete_notification(
         type=role_type_foo,
         start_date="2021-05-06",
         end_date="2021-10-20",
-        unit=org_unit_bar,
-        registered_by=sponsor,
+        orgunit_id=org_unit_bar,
+        sponsor_id=sponsor,
     )
     assert len(person.roles.all()) == 1
     person_role = person.roles.all()[0]