diff --git a/nexanote/sync/server.py b/nexanote/sync/server.py
index 7622b72..21f82a9 100644
--- a/nexanote/sync/server.py
+++ b/nexanote/sync/server.py
@@ -12,6 +12,7 @@
 
 import argparse
 import hashlib
+import importlib.util
 import logging
 import sys
 from pathlib import Path
@@ -80,7 +81,6 @@ def build_app(
 
         # Middleware
         "middleware_stack": [
-            "wsgidav.debug_filter.WsgiDavDebugFilter",
             "wsgidav.error_printer.ErrorPrinter",
             "wsgidav.http_authenticator.HTTPAuthenticator",
             "wsgidav.dir_browser.WsgiDavDirBrowser",
@@ -88,6 +88,9 @@ def build_app(
         ],
     }
 
+    if importlib.util.find_spec("wsgidav.debug_filter"):
+        config["middleware_stack"].insert(0, "wsgidav.debug_filter.WsgiDavDebugFilter")
+
     return WsgiDAVApp(config)