diff --git a/homeassistant/components/totalconnect/__init__.py b/homeassistant/components/totalconnect/__init__.py
index fce67f71b2405..25b1141bd9b9e 100644
--- a/homeassistant/components/totalconnect/__init__.py
+++ b/homeassistant/components/totalconnect/__init__.py
@@ -24,7 +24,8 @@
                 vol.Required(CONF_PASSWORD): cv.string,
             }
         )
-    }
+    },
+    extra=vol.ALLOW_EXTRA,
 )