diff --git a/backend/UserConfig.ts b/backend/UserConfig.ts
index d8d1e8a..52cd546 100644
--- a/backend/UserConfig.ts
+++ b/backend/UserConfig.ts
@@ -5,7 +5,7 @@ import { UserConfiguration, UserConfigTypeChecker } from 'ass';
  * Returns a boolean if the provided value is a number
  */
 const numChecker = (val: string) => {
-	try { parseInt(val); return true; }
+	try { return !isNaN(parseInt(val)); }
 	catch (err) { return false; }
 }