diff --git a/map/gps/gps-chase.js b/map/gps/gps-chase.js
index 800a9a3..a11861a 100644
--- a/map/gps/gps-chase.js
+++ b/map/gps/gps-chase.js
@@ -85,6 +85,7 @@
     function checkButton(){
     answer = document.getElementById( "mytext" ).value ;
     msg.innerText = '送信できました';
+    var latlng = L.latLng([pos.coords.latitude, pos.coords.longitude]);
     var latlng1 = L.latLng([38.879232, 139.853824]);
      if(latlng.distanceTo(latlng1) < 50){
 	if(answer == 2236){