diff --git a/src/app/components/bingocontroller.tsx b/src/app/components/bingocontroller.tsx
index d3857a4..5461e46 100644
--- a/src/app/components/bingocontroller.tsx
+++ b/src/app/components/bingocontroller.tsx
@@ -4,6 +4,7 @@ import React from 'react'
 import Bingo from './bingo'
 
 function FisherYatesShuffle(array:string[]):string[]{
+	array = array.slice();
 	for(let i = array.length - 1; i > 0; i--){
 		const j = Math.floor(Math.random() * (i + 1));
 		const temp = array[i];