diff --git a/awx/api/serializers.py b/awx/api/serializers.py
index 5e5d1b6934..7a81a06def 100644
--- a/awx/api/serializers.py
+++ b/awx/api/serializers.py
@@ -1651,12 +1651,6 @@ class CredentialSerializerCreate(CredentialSerializer):
         fields = ('*', 'user', 'team', 'organization')
 
     def create(self, validated_data):
-        '''
-        Special cases are processed for creating a credential. Fields of
-        user, team, and organization are allowed, and if given, roles are
-        automatically created for these. This is only used for list-create
-        view.
-        '''
         # Remove the user, team, and organization processed in view
         for field in ['user', 'team', 'organization']:
             validated_data.pop(field, None)
diff --git a/awx/main/tests/functional/api/test_credential.py b/awx/main/tests/functional/api/test_credential.py
index 165f3a1547..a272328b34 100644
--- a/awx/main/tests/functional/api/test_credential.py
+++ b/awx/main/tests/functional/api/test_credential.py
@@ -22,14 +22,14 @@ def test_create_user_credential_via_credentials_list(post, get, alice):
     assert response.data['count'] == 1
 
 @pytest.mark.django_db
-def test_credential_validation_error_with_bad_user(post, alice):
+def test_credential_validation_error_with_bad_user(post, admin):
     response = post(reverse('api:credential_list'), {
         'user': 'asdf',
         'name': 'Some name',
         'username': 'someusername'
-    }, alice)
-    assert response.status_code == 403
-    assert response.data['detail'] == 'You do not have permission to perform this action.'
+    }, admin)
+    assert response.status_code == 400
+    assert response.data['user'][0] == 'Incorrect type. Expected pk value, received unicode.'
 
 @pytest.mark.django_db
 def test_create_user_credential_via_user_credentials_list(post, get, alice):