diff --git a/awx/main/credential_plugins/tss.py b/awx/main/credential_plugins/tss.py
index 85cc5f5ada..682c6c8639 100644
--- a/awx/main/credential_plugins/tss.py
+++ b/awx/main/credential_plugins/tss.py
@@ -54,7 +54,9 @@ tss_inputs = {
 
 def tss_backend(**kwargs):
     if kwargs.get("domain"):
-        authorizer = DomainPasswordGrantAuthorizer(kwargs['server_url'], kwargs['username'], kwargs['password'], kwargs['domain'])
+        authorizer = DomainPasswordGrantAuthorizer(
+            base_url=kwargs['server_url'], username=kwargs['username'], domain=kwargs['domain'], password=kwargs['password']
+        )
     else:
         authorizer = PasswordGrantAuthorizer(kwargs['server_url'], kwargs['username'], kwargs['password'])
     secret_server = SecretServer(kwargs['server_url'], authorizer)