diff --git a/src/microdot/microdot.py b/src/microdot/microdot.py
index 870ef11..1b78b61 100644
--- a/src/microdot/microdot.py
+++ b/src/microdot/microdot.py
@@ -944,7 +944,6 @@ class Microdot:
         self.after_request_handlers = []
         self.after_error_request_handlers = []
         self.error_handlers = {}
-        self.shutdown_requested = False
         self.options_handler = self.default_options_handler
         self.debug = False
         self.server = None