diff --git a/scripts/check-sanity.mjs b/scripts/check-sanity.mjs
index 5578ed6..0b8a3bb 100644
--- a/scripts/check-sanity.mjs
+++ b/scripts/check-sanity.mjs
@@ -14,11 +14,12 @@
 
 import { readdirSync, readFileSync, statSync } from "node:fs";
 import { join, relative } from "node:path";
+import { fileURLToPath } from "node:url";
 
 const ROOT = process.cwd();
 const TARGETS = [".md", ".ts", ".mts", ".cts", ".mjs", ".json", ".yml", ".yaml"];
 const SKIP = new Set(["node_modules", "dist", ".git", ".openwar", "coverage"]);
-const SELF = relative(ROOT, new URL(import.meta.url).pathname.replace(/^\//, ""));
+const SELF = relative(ROOT, fileURLToPath(import.meta.url));
 
 const PATTERNS = [
   { name: "windows_user_path", regex: /[A-Za-z]:\\\\Users\\\\[A-Za-z0-9_.-]+/g, allow: [] },