diff --git a/lib/controllers/providers/api/gas_refill_provider.dart b/lib/controllers/providers/api/gas_refill_provider.dart
index e5c0fadd..bd3cd270 100644
--- a/lib/controllers/providers/api/gas_refill_provider.dart
+++ b/lib/controllers/providers/api/gas_refill_provider.dart
@@ -95,6 +95,7 @@ class GasRefillProvider extends ChangeNotifier {
     Map<String, dynamic> body = {
       "uid": user.id.toString(),
       "token": user.token ?? "",
+      "site": hospital?.toMap(),
       "building": {"id": building?.id, "name": building?.name, "value": building?.value},
       "floor": {"id": floor?.id, "name": floor?.name, "value": floor?.value},
       if (expectedDateTime != null) "expectedDate": expectedDateTime?.toIso8601String(),