diff --git a/README.md b/README.md
index 5609116..1e2f593 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,11 @@ customers to prove control of a domain name.
 
 3. Create a `gandi.ini` config file with the following contents and apply `chmod 600 gandi.ini` on it:
    ```
+   # live dns v5 api key
    certbot_plugin_gandi:dns_api_key=APIKEY
+
+   # optional organization id, remove it if not used
+   certbot_plugin_gandi:dns_sharing_id=SHARINGID
    ```
    Replace `APIKEY` with your Gandi API key and ensure permissions are set
    to disallow access to other users.
diff --git a/certbot_plugin_gandi/gandi_api.py b/certbot_plugin_gandi/gandi_api.py
index 79a6999..9ba7597 100644
--- a/certbot_plugin_gandi/gandi_api.py
+++ b/certbot_plugin_gandi/gandi_api.py
@@ -4,11 +4,11 @@
 from collections import namedtuple
 from certbot.plugins import dns_common
 
-_GandiConfig = namedtuple('_GandiConfig', ('api_key',))
+_GandiConfig = namedtuple('_GandiConfig', ('api_key', 'sharing_id',))
 _BaseDomain = namedtuple('_BaseDomain', ('fqdn'))
 
-def get_config(api_key):
-    return _GandiConfig(api_key=api_key)
+def get_config(api_key, sharing_id):
+    return _GandiConfig(api_key=api_key, sharing_id=sharing_id)
 
 
 def _get_json(response):
@@ -36,7 +36,7 @@ def _get_url(*segs):
 def _request(cfg, method, segs, **kw):
     headers = _headers(cfg)
     url = _get_url(*segs)
-    return requests.request(method, url, headers=headers, **kw)
+    return requests.request(method, url, headers=headers, params={'sharing_id': cfg.sharing_id}, **kw)
 
 
 def _get_base_domain(cfg, domain):
diff --git a/certbot_plugin_gandi/main.py b/certbot_plugin_gandi/main.py
index 4f6d0dc..842f820 100644
--- a/certbot_plugin_gandi/main.py
+++ b/certbot_plugin_gandi/main.py
@@ -39,7 +39,8 @@ def _setup_credentials(self):
             'credentials',
             'Gandi credentials INI file',
             {
-                'api-key': 'API key for Gandi account'
+                'api-key': 'API key for Gandi account',
+                'sharing-id': 'Optional Gandi organization ID'
             }
         )
 
@@ -57,4 +58,4 @@ def _cleanup(self, domain, validation_name, validation):
 
 
     def _get_gandi_config(self):
-        return gandi_api.get_config(api_key = self.credentials.conf('api-key'))
+        return gandi_api.get_config(api_key = self.credentials.conf('api-key'), sharing_id = self.credentials.conf('sharing-id'))
diff --git a/setup.py b/setup.py
index 50bec8e..5c8deaa 100644
--- a/setup.py
+++ b/setup.py
@@ -5,7 +5,7 @@
 
 setup(
     name='certbot-plugin-gandi',
-    version='1.2.2',
+    version='1.2.4',
     author="Yohann Leon",
     author_email="yohann@leon.re",
     description="Certbot plugin for authentication using Gandi LiveDNS",