diff --git a/src/components/common/LogPage/index.tsx b/src/components/common/LogPage/index.tsx
index c61d683a..d9b44cb7 100644
--- a/src/components/common/LogPage/index.tsx
+++ b/src/components/common/LogPage/index.tsx
@@ -7,13 +7,14 @@ import { useUser } from 'utils/hooks/state/useUser';
 
 const userUniqueIdGenerator = (userInfo: UserResponse | null | undefined) => {
   if (userInfo?.anonymous_nickname) {
-    localStorage.setItem('uuid', userInfo.anonymous_nickname);
-    return userInfo.anonymous_nickname;
+    const modifiedAnonymous = userInfo.anonymous_nickname.replace(/^익명_/, 'anonymous_');
+    localStorage.setItem('uuid', modifiedAnonymous);
+    return modifiedAnonymous;
   }
 
   let uuid = localStorage.getItem('uuid');
 
-  if (!uuid || uuid.includes('익명')) {
+  if (!uuid || uuid.startsWith('anonymous_')) {
     uuid = uuidv4();
     localStorage.setItem('uuid', uuid);
   }