diff --git a/tabellio/config/.controlpanel.pt.swp b/tabellio/config/.controlpanel.pt.swp
deleted file mode 100644
index a133c38..0000000
Binary files a/tabellio/config/.controlpanel.pt.swp and /dev/null differ
diff --git a/tabellio/config/configure.zcml b/tabellio/config/configure.zcml
index 73af58c..d1aaab2 100644
--- a/tabellio/config/configure.zcml
+++ b/tabellio/config/configure.zcml
@@ -16,6 +16,15 @@
       provides="Products.GenericSetup.interfaces.EXTENSION"
       />
 
+  <genericsetup:upgradeStep
+      title="Update registry"
+      source="*"
+      destination="1000"
+      handler=".upgrade.update_registry"
+      sortkey="1"
+      profile="tabellio.config:default"
+      />
+
   <browser:resource
       name="tabellio.config.png"
       image="icon.png"
diff --git a/tabellio/config/controlpanel.pt b/tabellio/config/controlpanel.pt
index 8f27766..558c0d2 100644
--- a/tabellio/config/controlpanel.pt
+++ b/tabellio/config/controlpanel.pt
@@ -67,6 +67,22 @@
 
                 </div>
 
+                <div
+                    tal:define="error errors/polgroupsPath | nothing;
+                                polgroupsPath python:request.get('polgroups', view.settings.polgroupsPath)"
+                    tal:attributes="class python:'field error' if error else 'field'">
+
+                    <label for="polgroupsPath" i18n:translate="label_polgroups_path">Political Groups</label>
+                    <div tal:content="error" tal:condition="error" />
+                    <input
+                        name="polgroupsPath"
+                        id="polgroupsPath"
+                        type="text"
+                        size="80"
+                        tal:attributes="value polgroupsPath"
+                        />
+                </div>
+
                 <div class="formControls">
                     <input
                         type="submit"
diff --git a/tabellio/config/controlpanel.py b/tabellio/config/controlpanel.py
index 4d48729..f268315 100644
--- a/tabellio/config/controlpanel.py
+++ b/tabellio/config/controlpanel.py
@@ -45,10 +45,12 @@ class TabellioControlpanel(BrowserView):
 
             deputies_path = form.get('deputiesPath')
             documents_path = form.get('documentsPath')
+            polgroups_path = form.get('polgroupsPath')
 
             if not self.errors:
                 self.settings.deputiesPath = deputies_path
                 self.settings.documentsPath = documents_path
+                self.settings.polgroupsPath = polgroups_path
 
         if submitted and not self.errors:
             self._setup()
diff --git a/tabellio/config/interfaces.py b/tabellio/config/interfaces.py
index 8004d49..c283577 100644
--- a/tabellio/config/interfaces.py
+++ b/tabellio/config/interfaces.py
@@ -15,3 +15,7 @@ class ITabellioSettings(Interface):
         title=_('documents_path', 'Documents Path'),
         required=False)
 
+    polgroupsPath = schema.TextLine(
+        title=_('polgroups_path', 'Political Groups Path'),
+        required=False)
+
diff --git a/tabellio/config/upgrade.py b/tabellio/config/upgrade.py
new file mode 100644
index 0000000..a26da4c
--- /dev/null
+++ b/tabellio/config/upgrade.py
@@ -0,0 +1,9 @@
+from Products.CMFCore.utils import getToolByName
+
+PROFILE_ID = "profile-tabellio.config:default"
+
+def update_registry(context, logger=None):
+    # Run the registry.xml step as that may have defined new attributes
+    setup = getToolByName(context, 'portal_setup')
+    setup.runImportStepFromProfile(PROFILE_ID, 'plone.app.registry')
+