diff --git a/api/data/migrate.ts b/api/data/migrate.ts
index c112d4d..64f6281 100644
--- a/api/data/migrate.ts
+++ b/api/data/migrate.ts
@@ -4,8 +4,14 @@ import * as path from "path"
 import { db } from "./database"
 import { fileURLToPath } from "url"
 
-let filename = __filename ?? fileURLToPath(import.meta.url)
-let dirname = __dirname ?? path.dirname(filename)
+let dirname
+
+try {
+  dirname = __dirname
+} catch {
+  const filename = fileURLToPath(import.meta.url)
+  dirname = path.dirname(filename)
+}
 
 const migrator = new Migrator({
   db,