diff --git a/django_fsm_log/conf.py b/django_fsm_log/conf.py
index 52af658..c281494 100644
--- a/django_fsm_log/conf.py
+++ b/django_fsm_log/conf.py
@@ -1,4 +1,4 @@
-from django.conf import settings  # noqa:F811
+from django.conf import settings  # noqa: F811,F401
 from appconf import AppConf
 
 
diff --git a/django_fsm_log/managers.py b/django_fsm_log/managers.py
index 438caca..3cc0b17 100644
--- a/django_fsm_log/managers.py
+++ b/django_fsm_log/managers.py
@@ -17,6 +17,8 @@ def for_(self, obj):
 
 
 class StateLogManager(models.Manager):
+    use_in_migrations = True
+
     def get_queryset(self):
         return StateLogQuerySet(self.model)
 
diff --git a/django_fsm_log/migrations/0004_auto_20190131_0341.py b/django_fsm_log/migrations/0004_auto_20190131_0341.py
new file mode 100644
index 0000000..5e65275
--- /dev/null
+++ b/django_fsm_log/migrations/0004_auto_20190131_0341.py
@@ -0,0 +1,20 @@
+# Generated by Django 2.1.5 on 2019-01-31 03:41
+
+from django.db import migrations
+import django_fsm_log.managers
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('django_fsm_log', '0003_statelog_description_squashed_0005_description_null'),
+    ]
+
+    operations = [
+        migrations.AlterModelManagers(
+            name='statelog',
+            managers=[
+                ('objects', django_fsm_log.managers.StateLogManager()),
+            ],
+        ),
+    ]
diff --git a/setup.py b/setup.py
index 3e120de..cfeae7b 100644
--- a/setup.py
+++ b/setup.py
@@ -18,7 +18,7 @@ def readfile(filename):
     author_email='tech@gizmag.com',
     url='https://github.com/gizmag/django-fsm-log',
     license='MIT',
-    packages=find_packages(),
+    packages=find_packages(exclude=['tests']),
     install_requires=['django>=1.8', 'django_fsm>=2', 'django_appconf'],
     extras_require={
         'testing': [