diff --git a/config/routes.json b/config/routes.json
index 0b45c0d..34a9970 100644
--- a/config/routes.json
+++ b/config/routes.json
@@ -11,11 +11,12 @@
 			"arguments": {}
 		},
 
-		"/ics/{diplome_id}.ics": {
+		"/ics/{diplome_id}{x}": {
 			"methods": ["GET"],
 			"controller": "ics:download",
 			"arguments": {
-				"diplome_id": "T\\d+"
+				"diplome_id": "T\\d+",
+				"x": "\\.ics"
 			}
 		},