diff --git a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
index 31d6f37..4bc257a 100644
--- a/src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
+++ b/src/trx-client/trx-frontend/trx-frontend-http/assets/web/app.js
@@ -6030,6 +6030,7 @@ function materializeBufferedMapLayers() {
 }
 
 function initAprsMap() {
+  if (typeof L === "undefined") return;
   const mapEl = document.getElementById("aprs-map");
   if (!mapEl) return;
   sizeAprsMapToViewport();