diff --git a/ndn/experiments/experiment.py b/ndn/experiments/experiment.py
index f7284a8..a107905 100644
--- a/ndn/experiments/experiment.py
+++ b/ndn/experiments/experiment.py
@@ -35,7 +35,7 @@
         self.convergenceTime = args["ctime"]
         self.nPings = args["nPings"]
         self.strategy = args["strategy"]
-        self.pctTraffic = float(args["pctTraffic"])
+        self.pctTraffic = args["pctTraffic"]
 
         # Used to restart pings on the recovered node if any
         self.pingedDict = {}
diff --git a/ndn/experiments/pingall_experiment.py b/ndn/experiments/pingall_experiment.py
index 60c8e4e..ba6b570 100644
--- a/ndn/experiments/pingall_experiment.py
+++ b/ndn/experiments/pingall_experiment.py
@@ -31,7 +31,6 @@
 
         Experiment.__init__(self, args)
         self.COLLECTION_PERIOD_BUFFER = 10
-        self.pctTraffic = float(args["pctTraffic"])
         print "Using %f traffic" % self.pctTraffic
 
     def run(self):