diff --git a/src/config/ch.sbb.isb/index.js b/src/config/ch.sbb.isb/index.js
index 45b1b1195..7a4d878af 100644
--- a/src/config/ch.sbb.isb/index.js
+++ b/src/config/ch.sbb.isb/index.js
@@ -119,7 +119,6 @@ export const isbSchmalspurbahnen = new SchmalspurLayer({
     /^schmalspur_line$/.test(metadata?.['isb.filter']),
   properties: {
     isQueryable: true,
-    shortToLongName: shortToLongNameTVS,
     popupComponent: 'SchmalspurPopup',
     useOverlay: true,
   },