diff --git a/superset-frontend/plugins/plugin-chart-echarts/src/Heatmap/transformProps.ts b/superset-frontend/plugins/plugin-chart-echarts/src/Heatmap/transformProps.ts
index fe508f53af1..3167834a881 100644
--- a/superset-frontend/plugins/plugin-chart-echarts/src/Heatmap/transformProps.ts
+++ b/superset-frontend/plugins/plugin-chart-echarts/src/Heatmap/transformProps.ts
@@ -150,7 +150,7 @@ export default function transformProps(
       data: data.map(row =>
         colnames.map(col => {
           const value = row[col];
-          if (!value) {
+          if (value === null || value === undefined) {
             return NULL_STRING;
           }
           if (typeof value === 'boolean' || typeof value === 'bigint') {