diff --git a/debian/50gnm.py b/debian/50gnm.py
index f126c4f..ff202c6 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -110,6 +110,11 @@ JSON_CELL_TYPES = {
     "cache_duration": 86400,
     "force_async": False,
     "name": u"Mairie",
+    "additional-data": [
+       {"key": "coordonnees",
+        "url": "[passerelle_url]csvdatasource/mairies/data?identifiant=[identifiant]"
+       }
+    ],
     "form": [
       {
         "varname": "identifiant",