diff --git a/dbus/dbus-bus.c b/dbus/dbus-bus.c
index 7b5f09af..3b775c76 100644
--- a/dbus/dbus-bus.c
+++ b/dbus/dbus-bus.c
@@ -557,7 +557,7 @@ out:
  * 
  * @param type bus type
  * @param error address where an error can be returned.
- * @returns a #DBusConnection with new ref
+ * @returns a #DBusConnection with new ref or #NULL on error
  */
 DBusConnection *
 dbus_bus_get (DBusBusType  type,