diff --git a/frontend/src/ts/ervu_business_metrics/component/chart/ErvuChartV2.ts b/frontend/src/ts/ervu_business_metrics/component/chart/ErvuChartV2.ts
index faccd33..b278aea 100644
--- a/frontend/src/ts/ervu_business_metrics/component/chart/ErvuChartV2.ts
+++ b/frontend/src/ts/ervu_business_metrics/component/chart/ErvuChartV2.ts
@@ -241,6 +241,13 @@ export class ErvuChartV2 extends Control implements Filterable {
           }
           this.cd.markForCheck();
         }
+      },
+      filter: tooltipItem => {
+        const type = tooltipItem.chart.config.type;
+        if (type == 'doughnut' || type == 'pie') {
+          return tooltipItem.label.trim().length !== 0;
+        }
+        return tooltipItem.dataset.label.trim().length !== 0
       }
     };