diff --git a/web/app.py b/web/app.py
index a1c084e..630cb69 100644
--- a/web/app.py
+++ b/web/app.py
@@ -37,20 +37,22 @@ class FlaskUser(UserMixin):
   def get_id(self):
     return self.db_user.telegram_username
 
-with open("web/static/.vite/manifest.json") as f:
-  vite_manifest = json.load(f)
+try:
+  with open("web/static/.vite/manifest.json") as f:
+    vite_manifest = json.load(f)
+except FileNotFoundError:
+  vite_manifest = None
 
 @app.context_processor
 def inject_vite_entry():
   def vite_entry(file):
-    if app.debug:
+    if vite_manifest is None:
       return Markup(
         dedent(f"""
           <script type="module" src="{DEBUG_VITE_PREFIX}@vite/client"></script>
           <script type="module" src="{DEBUG_VITE_PREFIX}{file}"></script>
           """).strip())
-    else:
-      if file in vite_manifest:
+    elif file in vite_manifest:
         src = vite_manifest[file]['file']
         result = f'<script type="module" src="{PROD_VITE_PREFIX}{src}"></script>'
         if('css' in vite_manifest[file]):