diff --git a/data/sources/coordinates/rest.yaml b/data/sources/coordinates/rest.yaml
index 26ede7743..510679454 100644
--- a/data/sources/coordinates/rest.yaml
+++ b/data/sources/coordinates/rest.yaml
@@ -5,6 +5,7 @@
 "0205.03.302": { lat: 48.147494785237, lon: 11.567622229204972 }
 "0305.04.508": { lat: 48.14609440391391, lon: 11.569374210372473 }
 "0503.02.345A": { lat: 48.1483384891566, lon: 11.565865189789264 }
+"0509.Z1.921": { lat: 48.1487386952626, lon: 11.566923686212574 }
 "0509.Z1.995": { lat: 48.14972497055329, lon: 11.567161041097489 }
 "0509.02.953A": { lat: 48.14930262787317, lon: 11.566896808473047 }