diff --git a/hobo/agent/authentic2/management/commands/hobo_deploy.py b/hobo/agent/authentic2/management/commands/hobo_deploy.py
index c89ceda..12bc4d0 100644
--- a/hobo/agent/authentic2/management/commands/hobo_deploy.py
+++ b/hobo/agent/authentic2/management/commands/hobo_deploy.py
@@ -1,7 +1,7 @@
 import requests
 import logging
 import os
-import time
+from time import sleep
 import xml.etree.ElementTree as ET
 
 from authentic2 import app_settings
@@ -233,7 +233,7 @@ class Command(hobo_deploy.Command):
                     break
 
                 # wait 5, 10, 20, 40, .. seconds
-                time.sleep(self.backoff_factor * (2 ** retries))
+                sleep(self.backoff_factor * (2 ** retries))
                 retries += 1
 
             if provision_target_ous:
diff --git a/tests_authentic/test_hobo_deploy.py b/tests_authentic/test_hobo_deploy.py
index 640045c..a75bb13 100644
--- a/tests_authentic/test_hobo_deploy.py
+++ b/tests_authentic/test_hobo_deploy.py
@@ -5,6 +5,7 @@ import pytest
 import shutil
 import json
 import mock
+import time
 
 from requests import RequestException
 
@@ -312,8 +313,10 @@ def test_hobo_deploy(monkeypatch, tenant_base, mocker, skeleton_dir):
     hobo_json.write(hobo_json_content)
     hobo_json.flush()
 
-    with mock.patch('hobo.agent.authentic2.provisionning.notify_agents') as mock_notify:
+    with mock.patch('hobo.agent.authentic2.provisionning.notify_agents') as mock_notify, \
+            mock.patch('hobo.agent.authentic2.management.commands.hobo_deploy.sleep', wraps=time.sleep) as sleep_mock:
         call_command('hobo_deploy', 'http://sso.example.net', hobo_json.name)
+    assert sleep_mock.call_count == 1  # there is one retry, as the third service's metadata is temporarily unavailable
 
     # check role mass provisionning to new services
     # two wcs => two ous => two audiences
@@ -461,6 +464,11 @@ def test_hobo_deploy(monkeypatch, tenant_base, mocker, skeleton_dir):
                         ou=provider.ou, service__isnull=True,
                         name=u'Service état-civil').count() == 1
 
+    with mock.patch('hobo.agent.authentic2.provisionning.notify_agents') as mock_notify, \
+            mock.patch('hobo.agent.authentic2.management.commands.hobo_deploy.sleep', wraps=time.sleep) as sleep_mock:
+        call_command('hobo_deploy', redeploy=True)
+    assert sleep_mock.call_count == 0
+
 
 def test_import_template(db, tenant_base):
     def listify(value):