diff --git a/homeassistant/components/mqtt/config_flow.py b/homeassistant/components/mqtt/config_flow.py
index 1a7dfbbc507..c848c2955fb 100644
--- a/homeassistant/components/mqtt/config_flow.py
+++ b/homeassistant/components/mqtt/config_flow.py
@@ -197,7 +197,6 @@ class FlowHandler(ConfigFlow, domain=DOMAIN):
 
     entry: ConfigEntry | None
     _hassio_discovery: dict[str, Any] | None = None
-    _reauth_config_entry: ConfigEntry | None = None
 
     @staticmethod
     @callback