diff --git a/apps/web/src/hooks/useChat.ts b/apps/web/src/hooks/useChat.ts
index c9fe796..b98ab03 100644
--- a/apps/web/src/hooks/useChat.ts
+++ b/apps/web/src/hooks/useChat.ts
@@ -280,13 +280,16 @@ export function useChat(options: UseChatOptions = {}): UseChatReturn {
         }
 
         // Streaming failed - check if auth error, try guest mode
-        const isAuthError = err instanceof Error && 
-          (err.message.includes("403") || err.message.includes("401") || 
-           err.message.includes("auth") || err.message.includes("Forbidden"));
+        const isAuthError =
+          err instanceof Error &&
+          (err.message.includes("403") ||
+            err.message.includes("401") ||
+            err.message.includes("auth") ||
+            err.message.includes("Forbidden"));
 
         if (isAuthError) {
           console.warn("Auth failed, trying guest chat mode");
-          
+
           // Try guest chat streaming
           try {
             await new Promise<void>((guestResolve, guestReject) => {