diff --git a/pi-extension/test/helpers.test.js b/pi-extension/test/helpers.test.js
index bbcdfd2..aca16bf 100644
--- a/pi-extension/test/helpers.test.js
+++ b/pi-extension/test/helpers.test.js
@@ -71,7 +71,7 @@ test("filterSkillBodyForMode keeps rule bullets that contain a colon", () => {
   // Regression: rule bullets outside the Intensity section (e.g. the
   // "No unrequested abstractions:" rule or the `ponytail:` comment convention)
   // contain a colon and must not be mistaken for mode-example lines.
-  const skillPath = join(import.meta.dirname, "..", "..", "skills", "ponytail", "SKILL.md");
+  const skillPath = new URL("../../skills/ponytail/SKILL.md", import.meta.url);
   const body = readFileSync(skillPath, "utf8");
 
   const filtered = filterSkillBodyForMode(body, "full");