diff --git a/main.py b/main.py
index 251975a..c669171 100644
--- a/main.py
+++ b/main.py
@@ -24,6 +24,9 @@ BASE_DIR = Path("/usr/src/app/taobin_project")
 
 SERVICE_NAME = os.getenv("SERVICE_NAME")
 PREFIX = os.getenv("PREFIX", "/taobin-image")
+STRIP_PREFIXES = tuple(
+    dict.fromkeys(prefix for prefix in (PREFIX, "/taobin-image") if prefix)
+)
 
 GIT_REPO_SERVER_URL = os.getenv("GIT_REPO_SERVER_URL")
 FRONTEND_NOTIFY_URL = os.getenv("FRONTEND_NOTIFY_URL")
@@ -44,8 +47,13 @@ ALLOWED_EXTENSIONS = {".jpg", ".jpeg", ".png", ".gif", ".webp"}
 async def strip_prefix_middleware(request: Request, call_next):
     path = request.scope["path"]
 
-    if PREFIX and path.startswith(PREFIX):
-        new_path = path[len(PREFIX):]
+    matched_prefix = next(
+        (prefix for prefix in STRIP_PREFIXES if path == prefix or path.startswith(prefix + "/")),
+        None
+    )
+
+    if matched_prefix:
+        new_path = path[len(matched_prefix):]
 
         if not new_path:
             new_path = "/"