diff --git a/mayan/apps/common/tests/test_setting_migrations.py b/mayan/apps/common/tests/test_setting_migrations.py
index b2c2183b4a..b89f978e58 100644
--- a/mayan/apps/common/tests/test_setting_migrations.py
+++ b/mayan/apps/common/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_shared_storage_arguments
@@ -10,7 +11,9 @@ class CommonSettingMigrationTestCase(SmartSettingTestMixin, BaseTestCase):
     def test_common_shared_storage_arguments_0001_migration(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_shared_storage_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/converter/tests/test_setting_migrations.py b/mayan/apps/converter/tests/test_setting_migrations.py
index b2af057eaf..9de1f306b9 100644
--- a/mayan/apps/converter/tests/test_setting_migrations.py
+++ b/mayan/apps/converter/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_graphics_backend_arguments
@@ -12,7 +13,9 @@ class ConverterSettingMigrationTestCase(
     def test_converter_graphics_backend_arguments_0001_migration(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_graphics_backend_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/document_signatures/tests/test_setting_migrations.py b/mayan/apps/document_signatures/tests/test_setting_migrations.py
index 2c76b2d66a..aeeaaa500f 100644
--- a/mayan/apps/document_signatures/tests/test_setting_migrations.py
+++ b/mayan/apps/document_signatures/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_storage_backend_arguments
@@ -12,7 +13,9 @@ class DocumentSignaturesSettingMigrationTestCase(
     def test_signatures_storage_backend_arguments_0001_migration(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_storage_backend_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/documents/tests/test_setting_migrations.py b/mayan/apps/documents/tests/test_setting_migrations.py
index fabab41ab6..f5eee20412 100644
--- a/mayan/apps/documents/tests/test_setting_migrations.py
+++ b/mayan/apps/documents/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import (
@@ -13,7 +14,9 @@ class DocumentSettingMigrationTestCase(SmartSettingTestMixin, BaseTestCase):
     def test_documents_storage_backend_arguments_0001(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_documentimagecache_storage_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
@@ -35,7 +38,9 @@ class DocumentSettingMigrationTestCase(SmartSettingTestMixin, BaseTestCase):
     def test_documents_cache_storage_backend_arguments_0001(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_storage_backend_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/file_metadata/tests/test_setting_migrations.py b/mayan/apps/file_metadata/tests/test_setting_migrations.py
index 67b3d9175e..7db386f972 100644
--- a/mayan/apps/file_metadata/tests/test_setting_migrations.py
+++ b/mayan/apps/file_metadata/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_drivers_arguments
@@ -12,7 +13,9 @@ class FileMetadataSettingMigrationTestCase(
     def test_file_metadata_drivers_arguments_0001_migration(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_drivers_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/ocr/tests/test_setting_migrations.py b/mayan/apps/ocr/tests/test_setting_migrations.py
index 39d87cf316..982ba7f201 100644
--- a/mayan/apps/ocr/tests/test_setting_migrations.py
+++ b/mayan/apps/ocr/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_ocr_backend_arguments
@@ -10,7 +11,9 @@ class OCRSettingMigrationTestCase(SmartSettingTestMixin, BaseTestCase):
     def test_ocr_backend_arguments_0001(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_ocr_backend_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(
diff --git a/mayan/apps/smart_settings/tests/mixins.py b/mayan/apps/smart_settings/tests/mixins.py
index c238f22166..1b135c1617 100644
--- a/mayan/apps/smart_settings/tests/mixins.py
+++ b/mayan/apps/smart_settings/tests/mixins.py
@@ -63,7 +63,6 @@ class SmartSettingTestMixin(EnvironmentTestCaseMixin):
                 name='MAYAN_CONFIGURATION_FILEPATH',
                 value=test_config_file_object.name
             )
-
             test_config_file_object.write(
                 force_bytes(
                     Setting.serialize_value(value=test_config_entry)
diff --git a/mayan/apps/sources/tests/test_setting_migrations.py b/mayan/apps/sources/tests/test_setting_migrations.py
index e922bafa3c..8d1833d3f9 100644
--- a/mayan/apps/sources/tests/test_setting_migrations.py
+++ b/mayan/apps/sources/tests/test_setting_migrations.py
@@ -1,6 +1,7 @@
 from __future__ import unicode_literals
 
 from mayan.apps.common.tests.base import BaseTestCase
+from mayan.apps.smart_settings.classes import Setting
 from mayan.apps.smart_settings.tests.mixins import SmartSettingTestMixin
 
 from ..settings import setting_staging_file_image_cache_storage_arguments
@@ -12,7 +13,9 @@ class SourceSettingMigrationTestCase(
     def test_setting_staging_file_image_cache_storage_arguments_0001_migration(self):
         test_value = {'location': 'test value'}
         self.test_setting = setting_staging_file_image_cache_storage_arguments
-        self.test_config_value = '{}'.format(test_value)
+        self.test_config_value = '{}'.format(
+            Setting.serialize_value(value=test_value)
+        )
         self._create_test_config_file()
 
         self.assertEqual(