diff --git a/src/modules/map/components/cesium/CesiumMouseTracker.vue b/src/modules/map/components/cesium/CesiumMouseTracker.vue
index 0c19ddc958..c4b4032ec0 100644
--- a/src/modules/map/components/cesium/CesiumMouseTracker.vue
+++ b/src/modules/map/components/cesium/CesiumMouseTracker.vue
@@ -56,7 +56,8 @@ function setupHandler() {
             const longitude = Math.toDegrees(cartographic.longitude)
             const latitude = Math.toDegrees(cartographic.latitude)
             // Transform to web mercator
-            let coordinate = transform([longitude, latitude], 'EPSG:4326', 'EPSG:3857')
+            let coordinate = transform([longitude, latitude], 'EPSG:4326', projection.value)
+            window.projection = projection.value
             coordinate.push(cartographic.height)
 
             mousePosition.value.textContent = formatCoordinate(coordinate)
diff --git a/src/utils/coordinates/CoordinateSystem.class.js b/src/utils/coordinates/CoordinateSystem.class.js
index 850351c1ed..66480464bb 100644
--- a/src/utils/coordinates/CoordinateSystem.class.js
+++ b/src/utils/coordinates/CoordinateSystem.class.js
@@ -212,6 +212,6 @@ export default class CoordinateSystem {
      * @returns {Number}
      */
     getCode() {
-        return this.epsgNumber
+        return `EPSG:${this.epsgNumber}`
     }
 }