diff --git a/src/rupload/app.py b/src/rupload/app.py
index 6a9714f..f3159bf 100644
--- a/src/rupload/app.py
+++ b/src/rupload/app.py
@@ -266,7 +266,7 @@ async def handle_index(request: web.Request):
     if request.app.is_upload_folder_quota_reached:
         message = "Server reached quota! Contact administrator."
     if request.app.upload_url in message:
-        url = message["here:" + len("here: "):]
+        url = message[message.find("here: ") + len("here: "):]
         message = message.replace("here: ", f"here: <a href=\"{url}")
         message += f'">{url}</a>'
     if message: