diff --git a/ansible_mitogen/strategy.py b/ansible_mitogen/strategy.py
index 1060e3b5..b6b9aaf2 100644
--- a/ansible_mitogen/strategy.py
+++ b/ansible_mitogen/strategy.py
@@ -276,8 +276,8 @@ class StrategyMixin(object):
             class_only=True,
         )
         if play_context.connection is not Sentinel:
-            # 2.8 appears to defer computing this value until it's inside the
-            # worker. TODO: figure out where this value has moved.
+            # 2.8 appears to defer computing this until inside the worker.
+            # TODO: figure out where it has moved.
             ansible_mitogen.loaders.connection_loader.get(
                 name=play_context.connection,
                 class_only=True,
diff --git a/ansible_mitogen/transport_config.py b/ansible_mitogen/transport_config.py
index ad1cab3e..d5f15b10 100644
--- a/ansible_mitogen/transport_config.py
+++ b/ansible_mitogen/transport_config.py
@@ -380,8 +380,9 @@ class PlayContextSpec(Spec):
             for term in ansible.utils.shlex.shlex_split(
                 first_true((
                     self._play_context.become_flags,
-                    self._play_context.sudo_flags,
-                    # Ansible 2.3.
+                    # Ansible <=2.7.
+                    getattr(self._play_context, 'sudo_flags', ''),
+                    # Ansible <=2.3.
                     getattr(C, 'DEFAULT_BECOME_FLAGS', ''),
                     getattr(C, 'DEFAULT_SUDO_FLAGS', '')
                 ), default='')