diff --git a/simulator.py b/simulator.py
index 7151315f..50b86e05 100644
--- a/simulator.py
+++ b/simulator.py
@@ -168,7 +168,6 @@ for stype, locs in SENSOR_LOCATIONS.items():
 # Orion-LD ne peut pas résoudre raw.githubusercontent.com — utiliser uri.etsi.org uniquement
 ORION_CONTEXT = [
     "https://uri.etsi.org/ngsi-ld/v1/ngsi-ld-core-context.jsonld",
-    {"source": "https://uri.fiware.org/ngsi-ld/default-context/source"}
 ]
 
 # Mapping sensor type → Smart Data Model type NGSI-LD