diff --git a/codex-rs/app-server/tests/suite/v2/marketplace_add.rs b/codex-rs/app-server/tests/suite/v2/marketplace_add.rs
index cf3c57360f..5f470f617d 100644
--- a/codex-rs/app-server/tests/suite/v2/marketplace_add.rs
+++ b/codex-rs/app-server/tests/suite/v2/marketplace_add.rs
@@ -5,6 +5,7 @@ use codex_app_server_protocol::JSONRPCResponse;
 use codex_app_server_protocol::MarketplaceAddParams;
 use codex_app_server_protocol::MarketplaceAddResponse;
 use codex_app_server_protocol::RequestId;
+use codex_utils_absolute_path::AbsolutePathBuf;
 use pretty_assertions::assert_eq;
 use tempfile::TempDir;
 use tokio::time::Duration;
@@ -48,10 +49,10 @@ async fn marketplace_add_local_directory_source() -> Result<()> {
         installed_root,
         already_added,
     } = to_response(response)?;
-    let expected_root = source.canonicalize()?;
+    let expected_root = AbsolutePathBuf::from_absolute_path(source.canonicalize()?)?;
 
     assert_eq!(marketplace_name, "debug");
-    assert_eq!(installed_root.as_path(), expected_root.as_path());
+    assert_eq!(installed_root, expected_root);
     assert!(!already_added);
     assert_eq!(
         std::fs::read_to_string(installed_root.as_path().join("plugins/sample/marker.txt"))?,
diff --git a/codex-rs/core-plugins/src/marketplace_add.rs b/codex-rs/core-plugins/src/marketplace_add.rs
index aeea5872d9..57e587e480 100644
--- a/codex-rs/core-plugins/src/marketplace_add.rs
+++ b/codex-rs/core-plugins/src/marketplace_add.rs
@@ -278,10 +278,9 @@ mod tests {
         let expected_source = source_root.path().canonicalize()?.display().to_string();
         assert_eq!(result.marketplace_name, "debug");
         assert_eq!(result.source_display, expected_source);
-        assert_eq!(
-            result.installed_root.as_path(),
-            source_root.path().canonicalize()?
-        );
+        let expected_installed_root =
+            AbsolutePathBuf::from_absolute_path(source_root.path().canonicalize()?)?;
+        assert_eq!(result.installed_root, expected_installed_root);
         assert!(!result.already_added);
         assert!(
             !marketplace_install_root(codex_home.path())