diff --git a/tests/ansible/ansible.cfg b/tests/ansible/ansible.cfg
index 3897519b..9c25732c 100644
--- a/tests/ansible/ansible.cfg
+++ b/tests/ansible/ansible.cfg
@@ -12,6 +12,9 @@ retry_files_enabled = False
 display_args_to_stdout = True
 forks = 100
 
+# On MacOS, "smart" with a password set causes Ansible to use paramiko.
+transport = ssh
+
 no_target_syslog = True
 
 # Required by integration/ssh/timeouts.yml