diff --git a/homeassistant/__main__.py b/homeassistant/__main__.py
index 64eca13356a..8c282c736b5 100644
--- a/homeassistant/__main__.py
+++ b/homeassistant/__main__.py
@@ -256,8 +256,8 @@ def run_hass_process(hass_proc):
     requested_stop = threading.Event()
     hass_proc.daemon = True
 
-    def request_stop():
-        """ request hass stop """
+    def request_stop(*args):
+        """ request hass stop, *args is for signal handler callback """
         requested_stop.set()
         hass_proc.terminate()