diff --git a/authentik/crypto/builder.py b/authentik/crypto/builder.py
index 55799a496..51ad4defb 100644
--- a/authentik/crypto/builder.py
+++ b/authentik/crypto/builder.py
@@ -33,7 +33,7 @@ class CertificateBuilder:
     def save(self) -> Optional[CertificateKeyPair]:
         """Save generated certificate as model"""
         if not self.__certificate:
-            return None
+            raise ValueError("Certificated hasn't been built yet")
         return CertificateKeyPair.objects.create(
             name=self.common_name,
             certificate_data=self.certificate,
diff --git a/authentik/crypto/tests.py b/authentik/crypto/tests.py
index 59df86b32..00dd0c30a 100644
--- a/authentik/crypto/tests.py
+++ b/authentik/crypto/tests.py
@@ -37,6 +37,8 @@ class TestCrypto(TestCase):
         """Test Builder"""
         builder = CertificateBuilder()
         builder.common_name = "test-cert"
+        with self.assertRaises(ValueError):
+            builder.save()
         builder.build(
             subject_alt_names=[],
             validity_days=3,
diff --git a/authentik/lib/tests/test_utils_reflection.py b/authentik/lib/tests/test_utils_reflection.py
new file mode 100644
index 000000000..4123cba61
--- /dev/null
+++ b/authentik/lib/tests/test_utils_reflection.py
@@ -0,0 +1,16 @@
+"""Test Reflection utils"""
+
+from datetime import datetime
+
+from django.test import TestCase
+
+from authentik.lib.utils.reflection import path_to_class
+
+
+class TestReflectionUtils(TestCase):
+    """Test Reflection-utils"""
+
+    def test_path_to_class(self):
+        """Test path_to_class"""
+        self.assertIsNone(path_to_class(None))
+        self.assertEqual(path_to_class("datetime.datetime"), datetime)