diff --git a/src/lib/utils.ts b/src/lib/utils.ts
index 99729a0b..b4d73817 100644
--- a/src/lib/utils.ts
+++ b/src/lib/utils.ts
@@ -166,11 +166,11 @@ export function mockUser(cookies: Partial<{ [key: string]: string }>) {
   } = cookies
   const ua = parseUA(BING_UA)
 
-  const { _U, MUID } = parseCookies(extraHeadersFromCookie({
+  const { _U } = parseCookies(extraHeadersFromCookie({
     BING_HEADER,
     BING_HEADER0,
     ...cookies,
-  }).cookie, ['MUID'])
+  }).cookie, [])
 
   return {
     'x-forwarded-for': BING_IP || randomIP(),
@@ -179,7 +179,7 @@ export function mockUser(cookies: Partial<{ [key: string]: string }>) {
     'User-Agent': ua!,
     'x-ms-useragent': 'azsdk-js-api-client-factory/1.0.0-beta.1 core-rest-pipeline/1.10.3 OS/Win32',
     'referer': 'https://www.bing.com/search?showconv=1&sendquery=1&q=Bing%20AI&form=MY02CJ&OCID=MY02CJ&OCID=MY02CJ&pl=launch',
-    cookie: `_U=${_U || defaultUID}; MUID=${MUID || randomString(32)}`,
+    cookie: `_U=${_U || defaultUID}; MUID=${randomString(32)}`,
   }
 }