diff --git a/docs/customization.md b/docs/customization.md
index 0776b5c13..420939484 100644
--- a/docs/customization.md
+++ b/docs/customization.md
@@ -57,7 +57,6 @@ In json files, you can just override the primary keys you need. You have to over
   - You can also update the map layers. There are two map layers available:
 
     - `mapClassicLayerUrl` for the map version
-    - `mapClassicLayerUrlOffline` for the map version in offline mode (if not defined `mapClassicLayerUrl` will be used in offline mode)
     - `mapSatelliteLayerUrl` for the satellite version. It is optional, so if you want to have only one available map background, you can add `mapSatelliteLayerUrl: undefined`. This will remove the button which allows the user to switch between two map backgrounds.
 
   - `zoomAvailableOffline` allows you to define the zoom modes allowed in offline mode. This allows you to control the amount of disk space required when caching. Default `[13,14,15]`
diff --git a/frontend/config/map.json b/frontend/config/map.json
index c228c83f9..a7e371bff 100644
--- a/frontend/config/map.json
+++ b/frontend/config/map.json
@@ -4,7 +4,6 @@
   "searchMapZoom": 10,
   "mapCredits": "OpenTopoMap",
   "mapClassicLayerUrl": "https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png",
-  "mapClassicLayerUrlOffline": "https://{s}.tile.opentopomap.org/{z}/{x}/{y}.png",
   "mapSatelliteLayerUrl": "https://server.arcgisonline.com/ArcGIS/rest/services/World_Imagery/MapServer/tile/{z}/{y}/{x}",
   "zoomAvailableOffline": [13, 14, 15]
 }
diff --git a/frontend/src/components/Map/interface.ts b/frontend/src/components/Map/interface.ts
index 4bfdfeaa9..6c6445152 100644
--- a/frontend/src/components/Map/interface.ts
+++ b/frontend/src/components/Map/interface.ts
@@ -4,7 +4,6 @@ export interface MapConfig {
   searchMapZoom: number;
   mapCredits: string;
   mapClassicLayerUrl: string;
-  mapClassicLayerUrlOffline?: string;
   mapSatelliteLayerUrl?: string;
   zoomAvailableOffline?: number[];
 }
diff --git a/frontend/src/services/offline/injectOfflineMode.ts b/frontend/src/services/offline/injectOfflineMode.ts
index 625fec8ac..9dd205de7 100644
--- a/frontend/src/services/offline/injectOfflineMode.ts
+++ b/frontend/src/services/offline/injectOfflineMode.ts
@@ -7,13 +7,9 @@ const LeafletOffline = require('leaflet.offline');
 const injectOfflineMode = (map: Map, id: number, center: LatLngBoundsExpression) => {
   const mapConfig = getMapConfig();
 
-  let mapTilesUrl;
-  if (navigator.onLine) mapTilesUrl = mapConfig.mapClassicLayerUrl;
-  else mapTilesUrl = mapConfig.mapClassicLayerUrlOffline ?? mapConfig.mapClassicLayerUrl;
-
   const tileLayerOffline = L.tileLayer
     // @ts-ignore no type available in this plugin
-    .offline(`${mapTilesUrl}?${id}`, {
+    .offline(`${mapConfig.mapClassicLayerUrl}?${id}`, {
       attribution: 'Map data {attribution.OpenStreetMap}',
       subdomains: 'abc',
       minZoom: Math.min(...(mapConfig?.zoomAvailableOffline ?? [])),