diff --git a/website/registrations/forms.py b/website/registrations/forms.py
index eeb8b1ef74ce56b2811c6ba72eac37447c50ee09..8ef50d5248e35d48b090c304768f4023d0ddf576 100644
--- a/website/registrations/forms.py
+++ b/website/registrations/forms.py
@@ -23,7 +23,8 @@ class MemberRegistrationForm(forms.ModelForm):
     class Meta:
         model = Registration
         fields = '__all__'
-        exclude = ['created_at', 'updated_at', 'status', 'username', 'remarks']
+        exclude = ['created_at', 'updated_at', 'status', 'username', 'remarks',
+                   'payment', 'membership']
 
 
 class MemberRenewalForm(forms.ModelForm):
diff --git a/website/registrations/models.py b/website/registrations/models.py
index 1672eb540e3ecf7fffa3dee3e06be5c43f8a50ae..aa778f39bbfc1e3045b6dc4e4267be996b5bdb8a 100644
--- a/website/registrations/models.py
+++ b/website/registrations/models.py
@@ -271,7 +271,7 @@ class Registration(Entry):
         if (self.starting_year is None and
                 self.membership_type is not Membership.SUPPORTER):
             errors.update({
-                'username': _('This field is required.')})
+                'starting_year': _('This field is required.')})
 
         if (self.programme is None and
                 self.membership_type is not Membership.SUPPORTER):
diff --git a/website/registrations/tests/test_models.py b/website/registrations/tests/test_models.py
index 3a37259df2191808e0808e56108fd188230fb8ac..10db8de2f213094351baac34aae441d49de6a1fc 100644
--- a/website/registrations/tests/test_models.py
+++ b/website/registrations/tests/test_models.py
@@ -129,14 +129,20 @@ class RegistrationTest(TestCase):
 
     def test_require_programme_members(self):
         self.registration.programme = None
-        with self.assertRaises(ValidationError):
+        with self.assertRaisesMessage(
+                ValidationError,
+                "{'programme': ['Dit veld is vereist.']}"
+        ):
             self.registration.clean()
         self.registration.membership_type = Membership.SUPPORTER
         self.registration.clean()
 
     def test_require_starting_year_members(self):
         self.registration.starting_year = None
-        with self.assertRaises(ValidationError):
+        with self.assertRaisesMessage(
+                ValidationError,
+                "{'starting_year': ['Dit veld is vereist.']}"
+        ):
             self.registration.clean()
         self.registration.membership_type = Membership.SUPPORTER
         self.registration.clean()