diff --git a/custom_components/eltako/schema.py b/custom_components/eltako/schema.py
index 71665004..9de19698 100644
--- a/custom_components/eltako/schema.py
+++ b/custom_components/eltako/schema.py
@@ -263,7 +263,7 @@ class GatewaySchema(EltakoPlatformSchema):
             vol.Required(CONF_BASE_ID): cv.matches_regex(CONF_ID_REGEX),
             vol.Optional(CONF_NAME, default=""): cv.string,
             vol.Optional(CONF_SERIAL_PATH): cv.string,
-            vol.Required(CONF_DEVICES): vol.All(vol.Schema({
+            vol.Optional(CONF_DEVICES): vol.All(vol.Schema({
                 **BinarySensorSchema.platform_node(),
                 **LightSchema.platform_node(),
                 **SwitchSchema.platform_node(),