diff --git a/fgs/views.py b/fgs/views.py
index ffbdd66..25ee3b2 100644
--- a/fgs/views.py
+++ b/fgs/views.py
@@ -3,7 +3,7 @@ from .jwt import jwt_required
 from .model import *
 from flask import g, jsonify, request, abort
 from sqlalchemy import func
-import geopy.distance
+from geopy.distance import geodesic
 from datetime import datetime, timedelta
 
 @app.route('/')
@@ -49,10 +49,11 @@ def collars_distance():
   
         distance_kilometers = 0
         coords_pairs = list(map(lambda e : (e.longitude, e.latitude), coords))
+        if len(coords_pairs) < 1: continue
 
         coord_last = coords_pairs.pop(0)
         for coord in coords_pairs:
-            distance_kilometers += geopy.distance.VincentyDistance(coord_last,coord).km
+            distance_kilometers += geodesic(coord_last,coord).km
             coord_last = coord
          
         active_collars.append(