diff --git a/munin/manifests/init.pp b/munin/manifests/init.pp
index 3076c5e..2c6b60a 100644
--- a/munin/manifests/init.pp
+++ b/munin/manifests/init.pp
@@ -8,6 +8,13 @@ class munin::node {
     }
     
     service { "munin-node":
+        name   => $operatingsystem ? {
+            OpenBSD => $operatingsystemrelease ? {
+                /4\.[1-8]/ => "munin-node",
+                default    => "munin_node",
+            },
+            default => "munin-node",
+        },
 	ensure  => running,
 	enable  => true,
 	require => Package["munin-node"],