diff --git a/rowers/views/planviews.py b/rowers/views/planviews.py
index 40197a4a..71faa56a 100644
--- a/rowers/views/planviews.py
+++ b/rowers/views/planviews.py
@@ -5,6 +5,7 @@ from __future__ import unicode_literals
 
 from rowers.views.statements import *
 from rowingdata import trainingparser
+import json
 
 @login_required
 @permission_required('plannedsession.view_session',fn=get_session_by_pk,raise_exception=True)
@@ -460,13 +461,17 @@ def plannedsession_create_view(request,
                 sessionunit=sessionunit,
                 comment=comment,
                 criterium=criterium,
+                interval_string=interval_string,
                 manager=request.user)
 
             ps.save()
 
             if interval_string:
                 dct = trainingparser.parsetodict(interval_string)
+                dct = [item for item in dct if item['value'] != 0]
                 dct = trainingparser.tofitdict(dct)
+                ps.json_string = json.dumps(dct)
+
                 txt = ps_dict_get_description(dct)
                 ps.comment += '\n'+txt
                 ps.save()