diff --git a/koki/koeki.js b/koki/koeki.js
index c6d3830..a99aa46 100644
--- a/koki/koeki.js
+++ b/koki/koeki.js
@@ -12,11 +12,11 @@
     var watchId = null;
     var stamp = 0;
     let place=[]
-    localStoragesetItem('stamp');
+    localStoragesetItem('stamp',0);
     console.log(localStorage.getItem('stamp'));
     
     //localstorageがあるか確認,なかったら作成
-    if (localStorage.getItem('stamp')==null ){
+    if (localStorage.getItem('stamp')==0 ){
 	localStorage.setItem('stamp',JSON.stringify(stamp));
 	for (var i=0; i<10; i++){
 	    place[i] = localStorage.getItem("stamp");