diff --git a/tone-page-web/components/nav-user.tsx b/tone-page-web/components/nav-user.tsx
index 3d6d9f8..be3b87a 100644
--- a/tone-page-web/components/nav-user.tsx
+++ b/tone-page-web/components/nav-user.tsx
@@ -52,7 +52,7 @@ export function NavUser({
             >
               <Avatar className="h-8 w-8 rounded-lg">
                 <AvatarImage src={user.avatar} alt={user.name} />
-                <AvatarFallback className="rounded-lg">CN</AvatarFallback>
+                <AvatarFallback className="rounded-lg">U</AvatarFallback>
               </Avatar>
               <div className="grid flex-1 text-left text-sm leading-tight">
                 <span className="truncate font-medium">{user.name}</span>
@@ -71,7 +71,7 @@ export function NavUser({
               <div className="flex items-center gap-2 px-1 py-1.5 text-left text-sm">
                 <Avatar className="h-8 w-8 rounded-lg">
                   <AvatarImage src={user.avatar} alt={user.name} />
-                  <AvatarFallback className="rounded-lg">CN</AvatarFallback>
+                  <AvatarFallback className="rounded-lg">U</AvatarFallback>
                 </Avatar>
                 <div className="grid flex-1 text-left text-sm leading-tight">
                   <span className="truncate font-medium">{user.name}</span>