diff --git a/main.py b/main.py
index 8b2f19c..251975a 100644
--- a/main.py
+++ b/main.py
@@ -23,7 +23,7 @@ BASE_DIR = Path("/usr/src/app/taobin_project")
 # BASE_DIR = Path("/taobin_project")
 
 SERVICE_NAME = os.getenv("SERVICE_NAME")
-PREFIX = os.getenv("PREFIX", "")
+PREFIX = os.getenv("PREFIX", "/taobin-image")
 
 GIT_REPO_SERVER_URL = os.getenv("GIT_REPO_SERVER_URL")
 FRONTEND_NOTIFY_URL = os.getenv("FRONTEND_NOTIFY_URL")
@@ -44,7 +44,7 @@ ALLOWED_EXTENSIONS = {".jpg", ".jpeg", ".png", ".gif", ".webp"}
 async def strip_prefix_middleware(request: Request, call_next):
     path = request.scope["path"]
 
-    if path.startswith(PREFIX):
+    if PREFIX and path.startswith(PREFIX):
         new_path = path[len(PREFIX):]
 
         if not new_path: