diff --git a/codex-rs/core/src/session/tests.rs b/codex-rs/core/src/session/tests.rs
index 55f36872c6..07714e359e 100644
--- a/codex-rs/core/src/session/tests.rs
+++ b/codex-rs/core/src/session/tests.rs
@@ -4494,6 +4494,7 @@ async fn session_new_fails_when_zsh_fork_enabled_without_packaged_zsh() {
         session_configuration,
         Arc::clone(&config),
         "11111111-1111-4111-8111-111111111111".to_string(),
+        /*inherited_multi_agent_version*/ None,
         auth_manager,
         models_manager,
         Arc::new(ExecPolicyManager::default()),
@@ -4842,6 +4843,7 @@ async fn make_session_with_config_and_rx(
         session_configuration,
         Arc::clone(&config),
         "11111111-1111-4111-8111-111111111111".to_string(),
+        /*inherited_multi_agent_version*/ None,
         auth_manager,
         models_manager,
         Arc::new(ExecPolicyManager::default()),
@@ -4946,6 +4948,7 @@ async fn make_session_with_history_source_and_agent_control_and_rx(
         session_configuration,
         Arc::clone(&config),
         "11111111-1111-4111-8111-111111111111".to_string(),
+        /*inherited_multi_agent_version*/ None,
         auth_manager,
         models_manager,
         Arc::new(ExecPolicyManager::default()),