diff --git a/manifests/params.pp b/manifests/params.pp
index 521d7b8..b8c0d45 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -36,7 +36,8 @@ class qdr::params {
       $tools_package_list   = [ 'qpid-dispatch-tools' ]
     }
     default: {
-      fail("Unsupported osfamily: ${::osfamily} operatingsystem")
+      fail("Unsupported osfamily: ${::osfamily} operatingsystem: ${::operatingsystem}, \
+module ${module_name} only support osfamily RedHat and Debian")
     }
   }