diff --git a/homeassistant/components/mysensors/__init__.py b/homeassistant/components/mysensors/__init__.py
index f1f139da857..55fcd41b9e0 100644
--- a/homeassistant/components/mysensors/__init__.py
+++ b/homeassistant/components/mysensors/__init__.py
@@ -140,6 +140,7 @@ async def async_setup(hass, config: ConfigType) -> bool:
             CONF_TOPIC_IN_PREFIX: gw.get(CONF_TOPIC_IN_PREFIX),
             CONF_RETAIN: config[CONF_RETAIN],
             CONF_VERSION: config[CONF_VERSION],
+            CONF_PERSISTENCE_FILE: gw.get(CONF_PERSISTENCE_FILE)
             # nodes config ignored at this time. renaming nodes can now be done from the frontend.
         }
         for gw in config[CONF_GATEWAYS]