diff --git a/pylot/core/active/seismicshot.py b/pylot/core/active/seismicshot.py
index 68087561..20b8fb38 100644
--- a/pylot/core/active/seismicshot.py
+++ b/pylot/core/active/seismicshot.py
@@ -283,7 +283,7 @@ class SeismicShot(object):
 
         # raise ValueError('ambigious or empty traceID: %s' % traceID)
 
-    def pickTraces(self, traceID, windowsize, folm, HosAic='hos'):  ########## input variables ##########
+    def pickTraces(self, traceID, folm, HosAic='hos', windowsize = (10, 0)):  ########## input variables ##########
         # LOCALMAX NOT IMPLEMENTED!
         '''
         Intitiate picking for a trace.