diff --git a/README.md b/README.md
index 760ed98..a6fa831 100644
--- a/README.md
+++ b/README.md
@@ -229,7 +229,7 @@ This table shows which parameters to set and how to obtain credentials for a num
 
  | Name | Parameter | Default IP/DNS/URL | Feeding protocol:<br>UDP/TCP/HTTP/Other | How to register for a key or ID |
  | ---- | --------- | ------------------ | --------------------------------------- | ------------------------------- |
- | ADSB-Network (RadarVirtuel) | `RADARVIRTUEL_FEEDER_KEY`<br>`RADARVIRTUEL_STATION_ID` | [https://ais.adsbnetwork.com/ingester/insert/$RADARVIRTUEL_FEEDER_KEY](https://ais.adsbnetwork.com/ingester/insert/$RADARVIRTUEL_FEEDER_KEY) | HTTP | Email <support@adsbnetwork.com> with your request to join |
+ | ADSB-Network (RadarVirtuel) | `RADARVIRTUEL_FEEDER_KEY` (optional, value is `lourd` if omitted)<br>`RADARVIRTUEL_STATION_ID` | [https://ais.adsbnetwork.com/ingester/insert/$RADARVIRTUEL_FEEDER_KEY](https://ais.adsbnetwork.com/ingester/insert/$RADARVIRTUEL_FEEDER_KEY) | HTTP | Email <support@adsbnetwork.com> with your request to join. If you receive an `ais-catcher` string like this: `-H http://ais.adsbnetwork.com/ingester/insert/lourd ID xx INTERVAL 5 RESPONSE off`, then simply set `RADARVIRTUEL_STATION_ID` to `xx` and omit or leave blank the `RADARVIRTUEL_FEEDER_KEY` parameter |
  | Airframes | `AIRFRAMES_STATION_ID` | [http://feed.airframes.io:5599](http://feed.airframes.io:5599) | HTTP | No signup needed. `AIRFRAMES_STATION_ID` is a self-chosen ID that has the form of `II-STATIONNAME-AIS`, where `II` are the initials of the owner's name, and `STATIONNAME` is a self-chosen station name (A-Z, 0-9 only please) |
  | AIS-Catcher | `AISCATCHER_SHAREDATA=true`<br>`AISCATCHER_FEEDER_KEY` | | Other | See [Exchanging data with `aiscatcher.org`](#exchanging-data-with-aiscatcherorg) [https://aiscatcher.org/#join](https://aiscatcher.org/#join). In the future, AISCatcher may provide you with an optional UUID that you can set in `AISCATCHER_FEEDER_KEY` |
  | AISHub | `AISHUB_UDP_PORT` | [data.aishub.net](http://data.aishub.net) | UDP | [https://www.aishub.net/join-us](https://www.aishub.net/join-us) |
diff --git a/rootfs/etc/s6-overlay/scripts/aiscatcher b/rootfs/etc/s6-overlay/scripts/aiscatcher
index 246e0d6..005c070 100755
--- a/rootfs/etc/s6-overlay/scripts/aiscatcher
+++ b/rootfs/etc/s6-overlay/scripts/aiscatcher
@@ -120,8 +120,8 @@ fi
 
 # Add a number of well-known feeders: 
 # ADSBNetwork / RadarVirtuel:
-if [[ -n "${RADARVIRTUEL_FEEDER_KEY:+$RADARVIRTUEL_STATION_ID}" ]]; then
-    aiscatcher_command+=("-H https://ais.adsbnetwork.com/ingester/insert/$RADARVIRTUEL_FEEDER_KEY ID $RADARVIRTUEL_STATION_ID INTERVAL 15 RESPONSE off")
+if [[ -n "${RADARVIRTUEL_STATION_ID}" ]]; then
+    aiscatcher_command+=("-H https://ais.adsbnetwork.com/ingester/insert/${RADARVIRTUEL_FEEDER_KEY:-lourd} ID $RADARVIRTUEL_STATION_ID INTERVAL 15 RESPONSE off")
 fi
 
 # AirFrames: