diff --git a/plinth/modules/nextcloud/forms.py b/plinth/modules/nextcloud/forms.py
index 1d32ccaf3..731ac25ec 100644
--- a/plinth/modules/nextcloud/forms.py
+++ b/plinth/modules/nextcloud/forms.py
@@ -11,9 +11,12 @@ def _get_phone_regions():
         from iso3166 import countries  # type: ignore
         phone_regions = [(country.alpha2, country.name)
                          for country in countries]
-        return sorted(phone_regions)
+        phone_regions = sorted(phone_regions)
     except ImportError:
-        return [('US', 'United States of America')]
+        # Allow users to set a non-empty value
+        phone_regions = [('US', 'United States of America')]
+
+    return [('', _('Not set'))] + phone_regions
 
 
 class NextcloudForm(forms.Form):
diff --git a/plinth/modules/nextcloud/views.py b/plinth/modules/nextcloud/views.py
index 3eb01240d..92a1e21f6 100644
--- a/plinth/modules/nextcloud/views.py
+++ b/plinth/modules/nextcloud/views.py
@@ -25,7 +25,7 @@ class NextcloudAppView(AppView):
         initial = super().get_initial()
         initial.update({
             'domain': privileged.get_domain(),
-            'default_phone_region': privileged.get_default_phone_region()
+            'default_phone_region': privileged.get_default_phone_region() or ''
         })
         return initial