diff --git a/codex-rs/core/tests/suite/compact.rs b/codex-rs/core/tests/suite/compact.rs
index 7491c886c7..5fe90bf7a7 100644
--- a/codex-rs/core/tests/suite/compact.rs
+++ b/codex-rs/core/tests/suite/compact.rs
@@ -33,6 +33,7 @@ use core_test_support::responses::mount_models_once;
 use core_test_support::skip_if_no_network;
 use core_test_support::test_codex::test_codex;
 use core_test_support::test_codex::turn_permission_fields;
+use core_test_support::test_path_buf;
 use core_test_support::wait_for_event;
 use core_test_support::wait_for_event_match;
 use std::path::PathBuf;
@@ -3698,7 +3699,7 @@ async fn snapshot_request_shape_pre_turn_compaction_including_incoming_user_mess
     core_test_support::submit_thread_settings(
         &codex,
         codex_protocol::protocol::ThreadSettingsOverrides {
-            cwd: Some(PathBuf::from(PRETURN_CONTEXT_DIFF_CWD).abs()),
+            cwd: Some(test_path_buf(PRETURN_CONTEXT_DIFF_CWD).abs()),
             ..Default::default()
         },
     )
diff --git a/codex-rs/core/tests/suite/compact_remote.rs b/codex-rs/core/tests/suite/compact_remote.rs
index e52f31f99d..2200c7b778 100644
--- a/codex-rs/core/tests/suite/compact_remote.rs
+++ b/codex-rs/core/tests/suite/compact_remote.rs
@@ -1,7 +1,6 @@
 #![allow(clippy::expect_used)]
 
 use std::fs;
-use std::path::PathBuf;
 
 use anyhow::Result;
 use codex_core::compact::SUMMARY_PREFIX;
@@ -37,6 +36,7 @@ use core_test_support::skip_if_no_network;
 use core_test_support::test_codex::TestCodexBuilder;
 use core_test_support::test_codex::TestCodexHarness;
 use core_test_support::test_codex::test_codex;
+use core_test_support::test_path_buf;
 use core_test_support::wait_for_event;
 use core_test_support::wait_for_event_match;
 use core_test_support::wait_for_event_with_timeout;
@@ -3314,7 +3314,7 @@ async fn snapshot_request_shape_remote_pre_turn_compaction_including_incoming_us
             core_test_support::submit_thread_settings(
                 &codex,
                 codex_protocol::protocol::ThreadSettingsOverrides {
-                    cwd: Some(PathBuf::from(PRETURN_CONTEXT_DIFF_CWD).abs()),
+                    cwd: Some(test_path_buf(PRETURN_CONTEXT_DIFF_CWD).abs()),
                     ..Default::default()
                 },
             )