diff --git a/web/skins/classic/views/js/event.js b/web/skins/classic/views/js/event.js
index fb2809fd99..01b9f76782 100644
--- a/web/skins/classic/views/js/event.js
+++ b/web/skins/classic/views/js/event.js
@@ -318,7 +318,8 @@ function changeScale() {
     currentScale = newSize.autoScale;
   } else if (scaleSel.indexOf("px") > -1) {
     newSize = scaleToFit(eventData.Width, eventData.Height, eventViewer, false, $j('#wrapperEventVideo')); // Only for calculating the maximum width!
-    let w, h = w = '';
+    let w = 0;
+    let h = 0;
     if (landscape) {
       w = Math.min(stringToNumber(scaleSel), newSize.width);
       h = w / (eventData.Width / eventData.Height);
@@ -1687,7 +1688,7 @@ function initPage() {
         zoomOffset: -1,
         accessToken: ZM_OPT_GEOLOCATION_ACCESS_TOKEN,
       }).addTo(map);
-      marker = L.marker([eventData.Latitude, eventData.Longitude], {draggable: 'false'});
+      const marker = L.marker([eventData.Latitude, eventData.Longitude], {draggable: 'false'});
       marker.addTo(map);
       map.invalidateSize();
     } else {