diff --git a/src/server/lib/files.ts b/src/server/lib/files.ts
index e510ccd..6746a38 100644
--- a/src/server/lib/files.ts
+++ b/src/server/lib/files.ts
@@ -4,7 +4,7 @@ import { readFile, writeFile } from "fs";
 import { Readable } from "node:stream"
 
 export let id_check_regex = /[A-Za-z0-9_\-\.]+/
-export let alphanum = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890"
+export let alphanum = Array.from("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890")
 
 // bad solution but whatever