diff --git a/moulinette/actionsmap.py b/moulinette/actionsmap.py
index da2df8e0..8170e95a 100644
--- a/moulinette/actionsmap.py
+++ b/moulinette/actionsmap.py
@@ -564,6 +564,7 @@ class ActionsMap(object):
                 func = getattr(mod, func_name)
             except (AttributeError, ImportError):
                 import traceback
+
                 traceback.print_exc()
                 logger.exception("unable to load function %s.%s", namespace, func_name)
                 raise MoulinetteError("error_see_log")
diff --git a/moulinette/interfaces/__init__.py b/moulinette/interfaces/__init__.py
index 08b0cb98..e1650e97 100644
--- a/moulinette/interfaces/__init__.py
+++ b/moulinette/interfaces/__init__.py
@@ -362,6 +362,7 @@ class _CallbackAction(argparse.Action):
             func = getattr(mod, func_name)
         except (AttributeError, ImportError):
             import traceback
+
             traceback.print_exc()
             raise ValueError("unable to import method {0}".format(self.callback_method))
         self._callback = func
diff --git a/moulinette/interfaces/cli.py b/moulinette/interfaces/cli.py
index aa339866..1b8e0ef9 100644
--- a/moulinette/interfaces/cli.py
+++ b/moulinette/interfaces/cli.py
@@ -175,7 +175,7 @@ def get_locale():
     except Exception:
         # In some edge case the locale lib fails ...
         # c.f. https://forum.yunohost.org/t/error-when-trying-to-enter-user-information-in-admin-panel/11390/11
-        lang = os.getenv('LANG')
+        lang = os.getenv("LANG")
     if not lang:
         return ""
     return lang[:2]
diff --git a/test/test_actionsmap.py b/test/test_actionsmap.py
index b69b5179..bf45adda 100644
--- a/test/test_actionsmap.py
+++ b/test/test_actionsmap.py
@@ -253,11 +253,18 @@ def test_actions_map_import_error(mocker):
 
     mocker.patch.object(MoulinetteLock, "_is_son_of", return_value=False)
 
-    mocker.patch("__builtin__.__import__", side_effect=ImportError)
+    orig_import = __import__
+
+    def import_mock(name, globals={}, locals={}, fromlist=[], level=-1):
+        if name == "moulitest.testauth":
+            mocker.stopall()
+            raise ImportError
+        return orig_import(name, globals, locals, fromlist, level)
+
+    mocker.patch("__builtin__.__import__", side_effect=import_mock)
     with pytest.raises(MoulinetteError) as exception:
         amap.process({}, timeout=30, route=("GET", "/test-auth/none"))
 
-    mocker.stopall()
     translation = m18n.g("error_see_log")
     expected_msg = translation.format()
     assert expected_msg in str(exception)
diff --git a/test/test_ldap.py b/test/test_ldap.py
index fadff9e6..13fff019 100644
--- a/test/test_ldap.py
+++ b/test/test_ldap.py
@@ -66,11 +66,14 @@ class TestLDAP:
 
         assert ldap_interface.con
 
-    def test_authenticate_server_down(self, ldap_server):
+    def test_authenticate_server_down(self, ldap_server, mocker):
         self.ldap_conf["parameters"]["uri"] = ldap_server.uri
         self.ldap_conf["parameters"]["user_rdn"] = "cn=admin,dc=yunohost,dc=org"
         ldap_server.stop()
         ldap_interface = m_ldap.Authenticator(**self.ldap_conf)
+
+        # Now if slapd is down, moulinette tries to restart it
+        mocker.patch("os.system")
         with pytest.raises(MoulinetteError) as exception:
             ldap_interface.authenticate(password="yunohost")