diff --git a/corsika/detail/modules/TrackWriter.inl b/corsika/detail/modules/TrackWriter.inl
index 8af3c31dc45b718d8213346e3896e2dffb02812d..058dbce4e20264fbc3d2811ba1257d480191285c 100644
--- a/corsika/detail/modules/TrackWriter.inl
+++ b/corsika/detail/modules/TrackWriter.inl
@@ -28,7 +28,7 @@ namespace corsika {
     auto const end = vT.getPosition(1).getCoordinates();
 
     // write the track to the file
-    this->write(vP.getPID(), vP.getEnergy(), start, end);
+    this->write(vP.getPID(), vP.getEnergy(), start, vP.getTime()-vT.getDuration(), end, vP.getTime());
 
     return ProcessReturn::Ok;
   }
@@ -48,7 +48,7 @@ namespace corsika {
 
     // add default units for values
     node["type"] = "TrackWriter";
-    node["units"] = "GeV | m";
+    node["units"] = "GeV | m | s";
 
     return node;
   }