diff --git a/frontend/src/app/components/block/block.component.ts b/frontend/src/app/components/block/block.component.ts
index 9482d9953..f1bfc63a5 100644
--- a/frontend/src/app/components/block/block.component.ts
+++ b/frontend/src/app/components/block/block.component.ts
@@ -216,7 +216,7 @@ export class BlockComponent implements OnInit, OnDestroy {
       this.blockSubsidy = 0;
       return;
     }
-    let halvings = Math.floor(this.block.height / (this.network === 'regtest' ? 150 : 210000));
+    const halvings = Math.floor(this.block.height / (this.network === 'regtest' ? 150 : 210000));
     this.blockSubsidy = 50 * 2 ** -halvings;
   }