diff --git a/python/samba/tests/auth_log_netlogon.py b/python/samba/tests/auth_log_netlogon.py
index 83ffd33c1a6..36920eeef34 100644
--- a/python/samba/tests/auth_log_netlogon.py
+++ b/python/samba/tests/auth_log_netlogon.py
@@ -47,12 +47,9 @@ class AuthLogTestsNetLogon(samba.tests.auth_log_base.AuthLogTestBase):
     def setUp(self):
         super(AuthLogTestsNetLogon, self).setUp()
         self.lp = samba.tests.env_loadparm()
-        self.creds = Credentials()
-
         self.session = system_session()
         self.ldb = SamDB(
             session_info=self.session,
-            credentials=self.creds,
             lp=self.lp)
 
         self.domain = os.environ["DOMAIN"]
diff --git a/python/samba/tests/auth_log_netlogon_bad_creds.py b/python/samba/tests/auth_log_netlogon_bad_creds.py
index 3b699bb6505..bd8b497cd88 100644
--- a/python/samba/tests/auth_log_netlogon_bad_creds.py
+++ b/python/samba/tests/auth_log_netlogon_bad_creds.py
@@ -49,12 +49,9 @@ class AuthLogTestsNetLogonBadCreds(samba.tests.auth_log_base.AuthLogTestBase):
     def setUp(self):
         super(AuthLogTestsNetLogonBadCreds, self).setUp()
         self.lp = samba.tests.env_loadparm()
-        self.creds = Credentials()
-
         self.session = system_session()
         self.ldb = SamDB(
             session_info=self.session,
-            credentials=self.creds,
             lp=self.lp)
 
         self.domain = os.environ["DOMAIN"]
diff --git a/python/samba/tests/auth_log_samlogon.py b/python/samba/tests/auth_log_samlogon.py
index eeb64df41eb..4959543937e 100644
--- a/python/samba/tests/auth_log_samlogon.py
+++ b/python/samba/tests/auth_log_samlogon.py
@@ -47,12 +47,9 @@ class AuthLogTestsSamLogon(samba.tests.auth_log_base.AuthLogTestBase):
     def setUp(self):
         super(AuthLogTestsSamLogon, self).setUp()
         self.lp = samba.tests.env_loadparm()
-        self.creds = Credentials()
-
         self.session = system_session()
         self.ldb = SamDB(
             session_info=self.session,
-            credentials=self.creds,
             lp=self.lp)
 
         self.domain = os.environ["DOMAIN"]