diff --git a/src/utils.ts b/src/utils.ts
index c772036..aaea81a 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -17,8 +17,10 @@ export function tryParseBigInt(value: string | number): bigint | null {
 }
 
 export function formatNumber(value: bigint, decimals: number): string {
+  if (value === 0n) {
+    return '0';
+  }
   const numberString = value.toString();
-
   if (numberString.length <= decimals) {
     return `0.${numberString.padStart(decimals, '0')}`;
   }
diff --git a/test/utils.test.ts b/test/utils.test.ts
index c9e02a6..b1a6fc0 100644
--- a/test/utils.test.ts
+++ b/test/utils.test.ts
@@ -15,6 +15,5 @@ describe('Utils functions tests', () => {
     expect(formatNumber(BigInt(123), 5)).toEqual('0.00123');
     expect(formatNumber(123000n, 2)).toEqual("1230");
     expect(formatNumber(BigInt(0), 5)).toEqual('0');
-
   })
 })