diff --git a/manifests/init.pp b/manifests/init.pp
index 4e5e7f5..52e01db 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -21,8 +21,8 @@
     err('The type parameter is required.')
   }
 
-  case $::operatingsystem {
-    redhat, centos, amazon: {
+  case $::osfamily {
+    RedHat: {
 
       fstab { "fstab entry for ${source} to ${dest} as ${type}":
         ensure => $ensure,