diff --git a/zaqar/storage/utils.py b/zaqar/storage/utils.py
index 087d01d6c..c7b219955 100644
--- a/zaqar/storage/utils.py
+++ b/zaqar/storage/utils.py
@@ -64,13 +64,11 @@ def dynamic_conf(uri, options, conf=None):
         driver_opts = utils.dict_to_conf({'message_store': storage_type})
         conf.register_opts(driver_opts, group=u'drivers')
 
-    conf.set_override('message_store', storage_type, 'drivers',
-                      enforce_type=True)
+    conf.set_override('message_store', storage_type, 'drivers')
 
     for opt in options:
         if opt in conf[storage_group]:
-            conf.set_override(opt, options[opt], group=storage_group,
-                              enforce_type=True)
+            conf.set_override(opt, options[opt], group=storage_group)
     return conf
 
 
diff --git a/zaqar/tests/base.py b/zaqar/tests/base.py
index b849c3947..e6b632df8 100644
--- a/zaqar/tests/base.py
+++ b/zaqar/tests/base.py
@@ -110,7 +110,7 @@ class TestBase(testtools.TestCase):
         test by the tearDown() method.
         """
         for k, v in kw.items():
-            self.conf.set_override(k, v, group, enforce_type=True)
+            self.conf.set_override(k, v, group)
 
     def _my_dir(self):
         return os.path.abspath(os.path.dirname(__file__))
diff --git a/zaqar/tests/unit/storage/sqlalchemy_migration/test_migrations_base.py b/zaqar/tests/unit/storage/sqlalchemy_migration/test_migrations_base.py
index 46fb48f8a..db530e564 100644
--- a/zaqar/tests/unit/storage/sqlalchemy_migration/test_migrations_base.py
+++ b/zaqar/tests/unit/storage/sqlalchemy_migration/test_migrations_base.py
@@ -71,8 +71,7 @@ class BaseWalkMigrationTestCase(object):
         """
 
         CONF.set_override('uri', str(engine.url),
-                          group='drivers:management_store:sqlalchemy',
-                          enforce_type=True)
+                          group='drivers:management_store:sqlalchemy')
 
     def _alembic_command(self, alembic_command, engine, *args, **kwargs):
         """Most of alembic command return data into output.
@@ -81,8 +80,7 @@ class BaseWalkMigrationTestCase(object):
         """
         self.ALEMBIC_CONFIG.stdout = buf = io.StringIO()
         CONF.set_override('uri', str(engine.url),
-                          group='drivers:management_store:sqlalchemy',
-                          enforce_type=True)
+                          group='drivers:management_store:sqlalchemy')
 
         getattr(command, alembic_command)(*args, **kwargs)
         res = buf.getvalue().strip()
@@ -184,8 +182,7 @@ class TestModelsMigrationsSync(t_m.ModelsMigrationsSync):
 
     def db_sync(self, engine):
         CONF.set_override('uri', str(engine.url),
-                          group='drivers:management_store:sqlalchemy',
-                          enforce_type=True)
+                          group='drivers:management_store:sqlalchemy')
         script_location = os.path.join(self.mg_path, 'alembic_migrations')
         self.ALEMBIC_CONFIG.set_main_option('script_location', script_location)
         alembic.command.upgrade(self.ALEMBIC_CONFIG, 'head')