diff --git a/tests/admin_pages/test_datasource.py b/tests/admin_pages/test_datasource.py
index 43a00561c..87a1e8587 100644
--- a/tests/admin_pages/test_datasource.py
+++ b/tests/admin_pages/test_datasource.py
@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 
 import json
+import mock
 import os
 import xml.etree.ElementTree as ET
 
@@ -111,6 +112,7 @@ def test_data_sources_agenda_without_chrono(pub):
     resp = app.get('/backoffice/settings/data-sources/')
     assert 'Agendas' not in resp.text
     assert 'There are no data sources from agendas.' not in resp.text
+    assert 'sync-agendas' not in resp.text
 
 
 def test_data_sources_agenda(pub, chrono_url):
@@ -121,6 +123,7 @@ def test_data_sources_agenda(pub, chrono_url):
     resp = app.get('/backoffice/settings/data-sources/')
     assert 'Agendas' in resp.text
     assert 'There are no agendas.' in resp.text
+    assert 'sync-agendas' in resp.text
 
     data_source = NamedDataSource(name='foobar')
     data_source.data_source = {'type': 'json', 'value': 'http://some.url'}
@@ -614,3 +617,19 @@ def test_data_sources_in_use_edit_slug(pub):
     resp = resp.click(href='edit')
     assert 'form_slug' in resp.text
     resp = resp.form.submit('submit')
+
+
+@mock.patch('wcs.data_sources.collect_agenda_data')
+def test_data_sources_agenda_refresh(mock_collect, pub, chrono_url):
+    create_superuser(pub)
+    NamedDataSource.wipe()
+
+    mock_collect.return_value = [
+        {'text': 'Events A', 'url': 'http://chrono.example.net/api/agenda/events-A/datetimes/'},
+        {'text': 'Events B', 'url': 'http://chrono.example.net/api/agenda/events-B/datetimes/'},
+    ]
+
+    app = login(get_app(pub))
+    resp = app.get('/backoffice/settings/data-sources/sync-agendas')
+    assert resp.location == 'http://example.net/backoffice/settings/data-sources/'
+    assert NamedDataSource.count() == 2
diff --git a/wcs/admin/data_sources.py b/wcs/admin/data_sources.py
index 5046f3975..d835aa701 100644
--- a/wcs/admin/data_sources.py
+++ b/wcs/admin/data_sources.py
@@ -32,7 +32,13 @@ from wcs.qommon.form import get_session
 from wcs.qommon import misc
 from wcs.qommon.backoffice.menu import html_top
 from wcs.carddef import CardDef
-from wcs.data_sources import NamedDataSource, DataSourceSelectionWidget, get_structured_items, has_chrono
+from wcs.data_sources import (
+    NamedDataSource,
+    DataSourceSelectionWidget,
+    get_structured_items,
+    has_chrono,
+    RefreshAgendas,
+)
 from wcs.formdef import FormDef, get_formdefs_of_all_kinds
 from wcs.backoffice.snapshots import SnapshotsDirectory
 
@@ -364,7 +370,7 @@ class NamedDataSourcePage(Directory):
 
 
 class NamedDataSourcesDirectory(Directory):
-    _q_exports = ['', 'new', ('import', 'p_import')]
+    _q_exports = ['', 'new', ('import', 'p_import'), ('sync-agendas', 'sync_agendas')]
 
     def _q_traverse(self, path):
         get_response().breadcrumb.append(('data-sources/', _('Data Sources')))
@@ -463,3 +469,8 @@ class NamedDataSourcesDirectory(Directory):
             datasource.slug = None  # a new one will be set in .store()
         datasource.store()
         return redirect('%s/' % datasource.id)
+
+    def sync_agendas(self):
+        get_response().add_after_job(RefreshAgendas())
+        get_session().message = ('info', _('Agendas will be updated in the background.'))
+        return redirect('.')
diff --git a/wcs/data_sources.py b/wcs/data_sources.py
index 95978635e..9ca96beee 100644
--- a/wcs/data_sources.py
+++ b/wcs/data_sources.py
@@ -27,7 +27,7 @@ from django.utils.six.moves.urllib import parse as urlparse
 from quixote import get_publisher, get_request, get_session
 from quixote.html import TemplateIO
 
-from .qommon import _, force_str
+from .qommon import _, N_, force_str
 from .qommon import misc
 from .qommon import get_logger
 from .qommon.cron import CronJob
@@ -35,6 +35,7 @@ from .qommon.form import *
 from .qommon.humantime import seconds2humanduration
 from .qommon.misc import get_variadic_url
 from .qommon.publisher import get_publisher_class
+from .qommon.afterjobs import AfterJob
 from .qommon.storage import StorableObject
 from .qommon.template import Template
 from .qommon.xml_storage import XmlStorableObject
@@ -843,6 +844,13 @@ def build_agenda_datasources(publisher):
         datasource.remove_self()
 
 
+class RefreshAgendas(AfterJob):
+    label = N_('Refreshing agendas')
+
+    def execute(self):
+        build_agenda_datasources(get_publisher())
+
+
 if get_publisher_class():
     # every hour: check for agenda datasources
     get_publisher_class().register_cronjob(
diff --git a/wcs/templates/wcs/backoffice/data-sources.html b/wcs/templates/wcs/backoffice/data-sources.html
index deb75c353..8d32272d6 100644
--- a/wcs/templates/wcs/backoffice/data-sources.html
+++ b/wcs/templates/wcs/backoffice/data-sources.html
@@ -4,6 +4,9 @@
 {% block appbar-title %}{% trans "Data Sources" %}{% endblock %}
 
 {% block appbar-actions %}
+{% if has_chrono %}
+<a href="sync-agendas">{% trans "Refresh agendas" %}</a>
+{% endif %}
 <a data-popup href="import">{% trans "Import" %}</a>
 <a href="new">{% trans "New Data Source" %}</a>
 {% endblock %}