diff --git a/bot/bot.py b/bot/bot.py
index 59a7887..56054ee 100644
--- a/bot/bot.py
+++ b/bot/bot.py
@@ -146,7 +146,8 @@ def stop(self):
                 self.__polling_thread.join()
 
     # noinspection PyUnusedLocal
-    def _signal_handler(self, sig: int):
+    def _signal_handler(self, sig: int, stack_frame=None):
+        # Bypass stack_frame due to signal handler requires 2 arguments
         if self.running:
             self.log.debug("Stopping bot by signal '{name} ({code})'. Repeat for force exit.".format(
                 name=signal_name_by_code(sig), code=sig