diff --git a/js/common.js b/js/common.js
index f2364a3..af55c8e 100644
--- a/js/common.js
+++ b/js/common.js
@@ -84,6 +84,7 @@ function randomString(n) {
 function formatNumberWithSpaces(number) {
     // if (typeof number != "string") number = "";
     if (Number(number) != number) return
+    number += "";
     return number.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
 }