diff --git a/web/src/beta/lib/core/engines/Cesium/Feature/Marker/index.tsx b/web/src/beta/lib/core/engines/Cesium/Feature/Marker/index.tsx
index 95d865749a..ce54e219f4 100644
--- a/web/src/beta/lib/core/engines/Cesium/Feature/Marker/index.tsx
+++ b/web/src/beta/lib/core/engines/Cesium/Feature/Marker/index.tsx
@@ -78,7 +78,7 @@ export default function Marker({ property, id, isVisible, geometry, layer, featu
   }, [coordinates]);
 
   const extrudePoints = useMemo(() => {
-    return extrude && coordinates && typeof coordinates[3] === "number"
+    return extrude && coordinates && typeof coordinates[2] === "number"
       ? [
           Cartesian3.fromDegrees(coordinates[0], coordinates[1], coordinates[2]),
           Cartesian3.fromDegrees(coordinates[0], coordinates[1], 0),
diff --git a/web/src/classic/core/engines/Cesium/Feature/Marker/index.tsx b/web/src/classic/core/engines/Cesium/Feature/Marker/index.tsx
index 2bdcd43e50..4b7e08e1a9 100644
--- a/web/src/classic/core/engines/Cesium/Feature/Marker/index.tsx
+++ b/web/src/classic/core/engines/Cesium/Feature/Marker/index.tsx
@@ -73,7 +73,7 @@ export default function Marker({ property, id, isVisible, geometry, layer, featu
   }, [coordinates]);
 
   const extrudePoints = useMemo(() => {
-    return extrude && coordinates && typeof coordinates[3] === "number"
+    return extrude && coordinates && typeof coordinates[2] === "number"
       ? [
           Cartesian3.fromDegrees(coordinates[0], coordinates[1], coordinates[2]),
           Cartesian3.fromDegrees(coordinates[0], coordinates[1], 0),