diff --git a/lib/Interactor/TransactionAggregator.js b/lib/Interactor/TransactionAggregator.js
index 4d632f45..5bdc074c 100644
--- a/lib/Interactor/TransactionAggregator.js
+++ b/lib/Interactor/TransactionAggregator.js
@@ -198,6 +198,7 @@ var TransactionAggregator = module.exports = function (pushInteractor) {
     // compute duration of child spans
     trace.spans.forEach(function(span) {
       span.min = span.max = span.mean = Math.round(new Date(span.endTime) - new Date(span.startTime));
+      delete span.endTime;
     })
 
     // Calculate/Update mean
@@ -415,7 +416,7 @@ var TransactionAggregator = module.exports = function (pushInteractor) {
 
         // create a copy without reference to stored one
         var routeCopy = {
-          path: route_path + '',
+          path: route_path === '/' ? '/' :  '/' + route_path,
           meta: fclone(data.meta),
           variances: []
         }