diff --git a/axes/test_settings.py b/axes/test_settings.py
index b8a47d4..46ba0b5 100644
--- a/axes/test_settings.py
+++ b/axes/test_settings.py
@@ -1,5 +1,3 @@
-from datetime import timedelta
-
 DATABASES = {
     'default': {
         'ENGINE': 'django.db.backends.sqlite3',
@@ -55,4 +53,3 @@ USE_TZ = False
 LOGIN_REDIRECT_URL = '/admin/'
 
 AXES_LOGIN_FAILURE_LIMIT = 10
-AXES_COOLOFF_TIME = timedelta(seconds=2)
diff --git a/axes/tests.py b/axes/tests.py
index 1ce899e..f12702f 100644
--- a/axes/tests.py
+++ b/axes/tests.py
@@ -16,13 +16,15 @@ from django.utils import six
 from django.test.client import RequestFactory
 
 from axes.decorators import get_ip, get_cache_key
-from axes.settings import COOLOFF_TIME
 from axes.settings import FAILURE_LIMIT
 from axes.models import AccessAttempt, AccessLog
 from axes.signals import user_locked_out
 from axes.utils import reset, iso8601
 
 
+TEST_COOLOFF_TIME = datetime.timedelta(seconds=2)
+
+
 class MockRequest:
     def __init__(self):
         self.META = dict()
@@ -140,17 +142,19 @@ class AccessAttemptTest(TestCase):
         self.assertNotEquals(AccessLog.objects.latest('id').logout_time, None)
         self.assertContains(response, 'Logged out')
 
+    @patch('axes.decorators.COOLOFF_TIME', TEST_COOLOFF_TIME)
     def test_cooling_off(self):
         """Tests if the cooling time allows a user to login
         """
         self.test_failure_limit_once()
 
         # Wait for the cooling off period
-        time.sleep(COOLOFF_TIME.total_seconds())
+        time.sleep(TEST_COOLOFF_TIME.total_seconds())
 
         # It should be possible to login again, make sure it is.
         self.test_valid_login()
 
+    @patch('axes.decorators.COOLOFF_TIME', TEST_COOLOFF_TIME)
     def test_cooling_off_for_trusted_user(self):
         """Test the cooling time for a trusted user
         """