diff --git a/app/src/main/java/com/uam/wmi/findmytutor/activity/MapActivity.java b/app/src/main/java/com/uam/wmi/findmytutor/activity/MapActivity.java
index 4dced04..fac1dc4 100644
--- a/app/src/main/java/com/uam/wmi/findmytutor/activity/MapActivity.java
+++ b/app/src/main/java/com/uam/wmi/findmytutor/activity/MapActivity.java
@@ -157,12 +157,14 @@ public class MapActivity extends BaseActivity
                                             markerAnimator.setDuration(2000);
                                             markerAnimator.start();
 
-                                            coordsMap.replace(id,element);
+//                                            coordsMap.replace(id,element);
+                                            coordsMap.put(id,element);
                                         } else if (!cord.getTimeStamp().equals(element.getTimeStamp())){
                                             Log.d("mapper", "update");
                                             Log.d("mapper", " "+cord.getTimeStamp());
-                                            Log.d("mapper", " "+element.getTimeStamp());
-                                            coordsMap.replace(id,element);
+                                            Log.d("mapper", " " + element.getTimeStamp());
+//                                            coordsMap.replace(id,element);
+                                            coordsMap.put(id,element);
                                         }
                                     } else {
                                         coordsMap.put(id,element);