diff --git a/angular/src/pipes/credit-card-number.pipe.ts b/angular/src/pipes/credit-card-number.pipe.ts
index 8e614a6965..11500ef951 100644
--- a/angular/src/pipes/credit-card-number.pipe.ts
+++ b/angular/src/pipes/credit-card-number.pipe.ts
@@ -46,7 +46,7 @@ export class CreditCardNumberPipe implements PipeTransform {
 
     const blocks = matchingRule.blocks;
 
-    let chunks: string[] = [];
+    const chunks: string[] = [];
     let total = 0;
 
     blocks.forEach((c) => {