diff --git a/frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts b/frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts
index d562375b8..62cc71ca6 100644
--- a/frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts
+++ b/frontend/src/app/components/hashrate-chart/hashrate-chart.component.ts
@@ -130,6 +130,7 @@ export class HashrateChartComponent implements OnInit {
                 });
                 ++hashIndex;
               }
+              diffIndex++;
               break;
             }