diff --git a/Urumbot/Urumbot.py b/Urumbot/Urumbot.py
index f0a2609ba7a3d72c1a7e776aadbac67a5a745604..f4b67518fdbc29ed0077a1620db86c444054beb9 100644
--- a/Urumbot/Urumbot.py
+++ b/Urumbot/Urumbot.py
@@ -82,6 +82,7 @@ def EventLoopAlarm():
 #def EventLoopAlarm():
 def EventLoop(signum,stack):
    global t,dt,tservo,t0,t1
+   #t0 = t1 = tservo = t = 0
    #
    # update time
    #