diff --git a/portmap/manifests/init.pp b/portmap/manifests/init.pp
index 0b5025a..c2c286f 100644
--- a/portmap/manifests/init.pp
+++ b/portmap/manifests/init.pp
@@ -10,7 +10,7 @@ class portmap::server {
             }
         }
         centos: {
-            case $operatingsystemrelase {
+            case $operatingsystemrelease {
                 /^[1-5]\./: {
                     package { "portmap":
                         ensure => installed,