diff --git a/packages/console/app/src/routes/zen/util/handler.ts b/packages/console/app/src/routes/zen/util/handler.ts
index 2e46df0366..540dfe7e87 100644
--- a/packages/console/app/src/routes/zen/util/handler.ts
+++ b/packages/console/app/src/routes/zen/util/handler.ts
@@ -299,7 +299,6 @@ export async function handler(
         let buffer = ""
         let responseLength = 0
         let timestampFirstByte = 0
-        let timestampLastByte = 0
 
         function pump(): Promise<void> {
           return (