diff --git a/homeassistant/components/withings/__init__.py b/homeassistant/components/withings/__init__.py
index 47702090cc0..6e8dee9a774 100644
--- a/homeassistant/components/withings/__init__.py
+++ b/homeassistant/components/withings/__init__.py
@@ -72,11 +72,12 @@ CONFIG_SCHEMA = vol.Schema(
 
 async def async_setup(hass: HomeAssistant, config: ConfigType) -> bool:
     """Set up the Withings component."""
-    conf = config.get(DOMAIN, {})
-    if not (conf := config.get(DOMAIN, {})):
+    if not (conf := config.get(DOMAIN)):
+        # Apply the defaults.
+        conf = CONFIG_SCHEMA({DOMAIN: {}})[DOMAIN]
+        hass.data[DOMAIN] = {const.CONFIG: conf}
         return True
 
-    # Make the config available to the oauth2 config flow.
     hass.data[DOMAIN] = {const.CONFIG: conf}
 
     # Setup the oauth2 config flow.