diff --git a/debian/50gnm.py b/debian/50gnm.py
index 38c8570..f3b4b76 100644
--- a/debian/50gnm.py
+++ b/debian/50gnm.py
@@ -225,7 +225,7 @@ JSON_CELL_TYPES = {
     "cache_duration": 60,
     "force_async": False,
     "name": u"M'y rendre",
-    "varnames": ["lat1", "lng1", "lat2", "lng2", "date"],
+    "varnames": ["lat1", "lng1", "lat2", "lng2", "date", "to"],
     "form": [
       {
         "varname": "tripmode",