diff --git a/templates/users.html b/templates/users.html
index 85a8442..39a469e 100644
--- a/templates/users.html
+++ b/templates/users.html
@@ -140,7 +140,7 @@ small {
 
                             <div class="panel panel-default" style="">
                                 <div class="panel-heading bg-info" style="font-weight: bold;">
-                                    <b>Contribution after login (API vs non-API)</b>
+                                    <b>Contribution after login</b>
                                     <strong  class='leftSepa textTopHeader' style="float: none; padding: 11px;">Dates:
                                         <input type="text" id="datepickerApi" size="10" style="">
                                     </strong>
@@ -250,16 +250,19 @@ small {
         function updateDatePieApi() {
             var date = datePickerWidgetApi.datepicker( "getDate" );
             $.getJSON( "{{ url_for('getLoginVSCOntribution') }}"+"?date="+date.getTime()/1000, function( data ) {
-                data = [
+                toPlot = [
                     {label: 'Has contributed during the day', data: data[0], color: '#4da74d' },
                     {label: 'Has not contributed during the day', data:data[1], color: '#cb4b4b' }
-                ]
+                ];
+                if (data[0] == 0 && data[1] == 0) {
+                    toPlot = [{ label: 'No data', data: 100 }];
+                }
 
                 if (!pieApiWidget === undefined) {
                     pieApiWidget.setData(toPlot);
                     pieApiWidget.draw();
                 } else {
-                    pieApiWidget = $.plot('#pieApi', data, {
+                    pieApiWidget = $.plot('#pieApi', toPlot, {
                         series: {
                             pie: {
                                 innerRadius: 0.5,
diff --git a/users_helper.py b/users_helper.py
index 193d32b..b646e4c 100644
--- a/users_helper.py
+++ b/users_helper.py
@@ -37,7 +37,6 @@ class Users_helper:
         orgs_contri = self.serv_redis_db.zrange(keyname, 0, -1, desc=True, withscores=False)
         orgs_contri = [ org.decode('utf8') for org in orgs_contri ]
         orgs_login = [ org[0] for org in self.getTopOrglogin(date, topNum=0) ]
-
         contributed_num = 0
         non_contributed_num = 0
         for org in orgs_login: