diff --git a/src/client/utils.ts b/src/client/utils.ts
index 58f1133..78c6cd8 100644
--- a/src/client/utils.ts
+++ b/src/client/utils.ts
@@ -34,7 +34,6 @@ export function getDefaultClientConfig() {
 
 export async function handleGETRequest(
   url: string,
-  isBuffer: boolean = true,
   retry: number = 3
 ): Promise<any> {
   if (retry < 0) {
@@ -45,6 +44,6 @@ export async function handleGETRequest(
     return await ret.json();
   } catch (e) {
     console.error(`failed GET request (${url}): ${e.message}`);
-    return handleGETRequest(url, isBuffer, retry - 1);
+    return handleGETRequest(url, retry - 1);
   }
 }