diff --git a/routes/api/tracks.js b/routes/api/tracks.js
index 71ae71f..5a835e1 100644
--- a/routes/api/tracks.js
+++ b/routes/api/tracks.js
@@ -66,6 +66,10 @@ function addPointsToTrack(track,body)
       {
           f = parseFloat(token.substring(0,10));
       }
+      if(isNaN(f))
+      {
+        f=0.0;
+      }
       track.trackData.points[track.trackData.points.length - 1].latitude = f;
       num++;
     }
@@ -75,6 +79,10 @@ function addPointsToTrack(track,body)
       {
           f = parseFloat(token.substring(0,10));
       }
+      if(isNaN(f))
+      {
+        f=0.0;
+      }
       track.trackData.points[track.trackData.points.length - 1].longitude = f;
       num++;
     }
@@ -84,6 +92,10 @@ function addPointsToTrack(track,body)
       {
           f = parseFloat(token.substring(0,10));
       }
+      if(isNaN(f))
+      {
+        f=0.0;
+      }
       track.trackData.points[track.trackData.points.length - 1].course = f;
       num++;
     }
@@ -93,6 +105,10 @@ function addPointsToTrack(track,body)
       {
           f = parseFloat(token.substring(0,10));
       }
+      if(isNaN(f))
+      {
+        f=0.0;
+      }
       track.trackData.points[track.trackData.points.length - 1].speed = f;
       num++;
     }