diff --git a/homeassistant/components/freebox/config_flow.py b/homeassistant/components/freebox/config_flow.py
index c037d3eee1a..2260e69cc3c 100644
--- a/homeassistant/components/freebox/config_flow.py
+++ b/homeassistant/components/freebox/config_flow.py
@@ -21,7 +21,9 @@ class FreeboxFlowHandler(config_entries.ConfigFlow, domain=DOMAIN):
 
     VERSION = 1
 
-    _data: dict[str, Any] = {}
+    def __init__(self) -> None:
+        """Initialize config flow."""
+        self._data: dict[str, Any] = {}
 
     async def async_step_user(
         self, user_input: dict[str, Any] | None = None