diff --git a/passerelle_montpellier_encombrants/management/commands/notify_sectors.py b/passerelle_montpellier_encombrants/management/commands/notify_sectors.py
index 2264ca5..25ff7cc 100644
--- a/passerelle_montpellier_encombrants/management/commands/notify_sectors.py
+++ b/passerelle_montpellier_encombrants/management/commands/notify_sectors.py
@@ -16,9 +16,13 @@ class Command(BaseCommand):
         api_user = getattr(settings, 'ENCOMBRANTS_API_USER')
         secret = getattr(settings, 'ENCOMBRANTS_API_SECRET')
         orig = getattr(settings, 'ENCOMBRANTS_API_ORIG')
-        if sign:
+        use_http_auth = getattr(settings, 'ENCOMBRANTS_API_HTTP_AUTH', False)
+        kwargs = {}
+        if use_http_auth:
+            kwargs['auth'] = (settings.ENCOMBRANTS_API_HTTP_USERNAME, settings.ENCOMBRANTS_API_HTTP_PASSWORD)
+        elif sign:
             url = sign_url(url + '&email=' + urllib.quote(api_user), secret) + '&orig=' + urllib.quote(orig)
-        return requests.get(url, headers={'Accept': 'application/json'})
+        return requests.get(url, headers={'Accept': 'application/json'}, *kwargs)
 
     def handle(self, *args, **kwargs):
         if not getattr(settings, 'ENCOMBRANTS_FORM_URL', None):