diff --git a/homeassistant/setup.py b/homeassistant/setup.py
index 41201264da22d6..057843834c0516 100644
--- a/homeassistant/setup.py
+++ b/homeassistant/setup.py
@@ -160,8 +160,8 @@ def log_error(msg: str, link: bool = True) -> None:
         log_error("Component failed to initialize.")
         return False
     if result is not True:
-        log_error("Component did not return boolean if setup was successful. "
-                  "Disabling component.")
+        log_error("Component {!r} did not return boolean if setup was "
+                  "successful. Disabling component.".format(domain))
         loader.set_component(hass, domain, None)
         return False