diff --git a/src/testapp/models.py b/src/testapp/models.py
index 055ede1..96c0a9d 100644
--- a/src/testapp/models.py
+++ b/src/testapp/models.py
@@ -82,7 +82,7 @@ class SimpleExcludeModel(models.Model):
     history = AuditlogHistoryField()
 
 
-class AdditionDataIncludedModel(models.Model):
+class AdditionalDataIncludedModel(models.Model):
     """
     A model where get_additional_data is defined which allows for logging extra
     information about the model in JSON
@@ -111,4 +111,4 @@ auditlog.register(AltPrimaryKeyModel)
 auditlog.register(ProxyModel)
 auditlog.register(SimpleIncludeModel, include_fields=['label', ])
 auditlog.register(SimpleExcludeModel, exclude_fields=['label', ])
-auditlog.register(AdditionDataIncludedModel)
+auditlog.register(AdditionalDataIncludedModel)
diff --git a/src/testapp/tests.py b/src/testapp/tests.py
index 6bfa01f..8d395bc 100644
--- a/src/testapp/tests.py
+++ b/src/testapp/tests.py
@@ -7,7 +7,7 @@ from django.test import TestCase, RequestFactory
 from auditlog.middleware import AuditlogMiddleware
 from auditlog.models import LogEntry
 from testapp.models import (SimpleModel, AltPrimaryKeyModel, ProxyModel,
-    SimpleIncludeModel, SimpleExcludeModel, AdditionDataIncludedModel,)
+    SimpleIncludeModel, SimpleExcludeModel, AdditionalDataIncludedModel,)
 
 
 class SimpleModelTest(TestCase):
@@ -191,7 +191,7 @@ class AdditionalDataModelTest(TestCase):
 
     def test_model_with_additional_data(self):
         related_model = SimpleModel.objects.create(text='Log my reference')
-        obj_with_additional_data = AdditionDataIncludedModel(
+        obj_with_additional_data = AdditionalDataIncludedModel(
             label='Additional data to log entries', related=related_model)
         obj_with_additional_data.save()
         self.assertTrue(obj_with_additional_data.history.count() == 1,