diff --git a/manifests/params.pp b/manifests/params.pp
index 9d98aa9..968583b 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -22,7 +22,10 @@
       $virtinst_package = 'virtinst'
       $radvd_package = 'radvd'
       $sysconfig = false
-      $deb_default = {}
+      $deb_default = $::service_provider ? {
+        'systemd' => { 'libvirtd_opts' => '' },  # no '-d', it confuses systemd
+        default   => {},
+      }
       # UNIX socket
       $auth_unix_ro = 'none'
       $unix_sock_rw_perms = '0770'