diff --git a/src/lib/vis/visualizations/mapvis/layers/heatmap-layer/HeatLayer.tsx b/src/lib/vis/visualizations/mapvis/layers/heatmap-layer/HeatLayer.tsx
index 9023a6ec19a9fb0795966e17195f3b6e1e9c9af0..db7e7a7d953240aaf62f5ec587facbd3efb303f6 100644
--- a/src/lib/vis/visualizations/mapvis/layers/heatmap-layer/HeatLayer.tsx
+++ b/src/lib/vis/visualizations/mapvis/layers/heatmap-layer/HeatLayer.tsx
@@ -29,7 +29,7 @@ export class HeatLayer extends CompositeLayer<CompositeLayerType> {
         id: layerId,
         data: data.nodes.filter((node: Node) => node.label === label),
         visible: !layerSettings.nodes[label].hidden,
-        getPosition: (d: any) => getNodeLocation(d.id),
+        getPosition: (d: any) => getNodeLocation(d._id),
         getWeight: (d: any) => layerSettings.nodes[label].size,
         radiusPixels: layerSettings.nodes[label].size,
         aggregation: 'SUM',