diff --git a/django_x509/base/models.py b/django_x509/base/models.py
index 85ad706..021dfef 100644
--- a/django_x509/base/models.py
+++ b/django_x509/base/models.py
@@ -201,6 +201,7 @@ def clean(self):
 
     def save(self, *args, **kwargs):
         if not self.pk and not self.certificate and not self.private_key:
+            #removed these lines and any reference to the generate variable
             if not self.serial_number:
                 self.serial_number = self._generate_serial_number()
             self._generate()
diff --git a/django_x509/tests/test_cert.py b/django_x509/tests/test_cert.py
index c519400..91e1817 100644
--- a/django_x509/tests/test_cert.py
+++ b/django_x509/tests/test_cert.py
@@ -82,6 +82,7 @@ class TestCert(TestX509Mixin, TestCase):
 """
 
     def test_new(self):
+        #added assertNumQueries to check the number of queries made
         with self.assertNumQueries(3):  # 3 query to be made
             cert = self._create_cert()
         self.assertNotEqual(cert.certificate, '')