diff --git a/map/gps-chase/gps-chase.js b/map/gps-chase/gps-chase.js
index ef648c1..58994b4 100644
--- a/map/gps-chase/gps-chase.js
+++ b/map/gps-chase/gps-chase.js
@@ -26,8 +26,10 @@
     mymap.on('move', function(e) {
         if(latlng.distanceTo(goul) <= 50){
             if(!g){
+                g = true;
                 alert("ゴール!");
                 stopGPS();
+
             }
         }
     });