diff --git a/manifests/params.pp b/manifests/params.pp
index 617408e..16f48af 100644
--- a/manifests/params.pp
+++ b/manifests/params.pp
@@ -32,41 +32,64 @@
 
     'RedHat': {
 
-      $sssd_package   = 'sssd'
-      $sssd_service   = 'sssd'
-      $service_ensure = 'running'
-      $config_file    = '/etc/sssd/sssd.conf'
-      $mkhomedir      = true
+      $sssd_package         = 'sssd'
+      $sssd_service         = 'sssd'
+      $service_ensure       = 'running'
+      $config_file          = '/etc/sssd/sssd.conf'
+      $mkhomedir            = true
 
-      case $::operatingsystemrelease {
+      case $::operatingsystem {
         default: {
-          fail("operatingsystemrelease is <${::operatingsystemrelease}> and must be in 5, 6 or 7.")
-        }
-        /^5/: {
-          $service_dependencies = ['messagebus']
-          $extra_packages = [
-            'authconfig',
-          ]
-          $extra_packages_ensure = 'latest'
-          $manage_oddjobd        = false
+          fail("operatingsystem is <${::operatingsystem}> which is not supported")
         }
-        /^6/: {
-          $service_dependencies = ['messagebus']
-          $extra_packages = [
-            'authconfig',
-            'oddjob-mkhomedir',
-          ]
-          $extra_packages_ensure = 'present'
-          $manage_oddjobd        = true
+        'RedHat', 'CentOS': {
+          case $::operatingsystemmajrelease {
+            default: {
+              fail("operatingsystemrelease is <${::operatingsystemrelease}> and must be in 5, 6 or 7.")
+            }
+            '5': {
+              $service_dependencies = ['messagebus']
+              $extra_packages = [
+                'authconfig',
+              ]
+              $extra_packages_ensure = 'latest'
+              $manage_oddjobd        = false
+            }
+            '6': {
+              $service_dependencies = ['messagebus']
+              $extra_packages = [
+                'authconfig',
+                'oddjob-mkhomedir',
+              ]
+              $extra_packages_ensure = 'present'
+              $manage_oddjobd        = true
+            }
+            '7': {
+              $service_dependencies = []
+              $extra_packages = [
+                'authconfig',
+                'oddjob-mkhomedir',
+              ]
+              $extra_packages_ensure = 'present'
+              $manage_oddjobd        = true
+            }
+          }
         }
-        /^7/: {
-          $service_dependencies = []
-          $extra_packages = [
-            'authconfig',
-            'oddjob-mkhomedir',
-          ]
-          $extra_packages_ensure = 'present'
-          $manage_oddjobd        = true
+        'Fedora': {
+          case $::operatingsystemmajrelease {
+            default: {
+              fail("operatingsystemrelease is <${::operatingsystemrelease}> and must be in 25 or 26.")
+            }
+            '25', '26': {
+              $service_dependencies = []
+              $extra_packages = [
+                'authconfig',
+                'oddjob-mkhomedir',
+              ]
+              $extra_packages_ensure = 'present'
+              $manage_oddjobd        = true
+            }
+          }
         }
       }
     }
diff --git a/spec/classes/init_spec.rb b/spec/classes/init_spec.rb
index 1d095f6..40a3f9c 100644
--- a/spec/classes/init_spec.rb
+++ b/spec/classes/init_spec.rb
@@ -4,8 +4,10 @@
     let(:facts) do
       {
         :osfamily => 'RedHat',
+        :operatingsystem => 'RedHat',
         :operatingsystemrelease => '5.7',
-        :rubyversion => '1.9.3'
+        :operatingsystemmajrelease => '5',
+        :rubyversion => '1.9.3',
       }
     end
 
@@ -40,8 +42,10 @@
       let(:facts) do
         {
           :osfamily => 'RedHat',
+          :operatingsystem => 'RedHat',
           :operatingsystemrelease => '5.7',
-          :rubyversion => '1.8.7'
+          :operatingsystemmajrelease => '5',
+          :rubyversion => '1.8.7',
         }
       end
       it do
@@ -62,8 +66,10 @@
     let(:facts) do
       {
         :osfamily => 'RedHat',
+        :operatingsystem => 'RedHat',
         :operatingsystemrelease => '4.0',
-        :rubyversion => '1.9.3'
+        :operatingsystemmajrelease => '4',
+        :rubyversion => '1.9.3',
       }
     end
 
@@ -78,8 +84,10 @@
     let(:facts) do
       {
         :osfamily => 'RedHat',
+        :operatingsystem => 'RedHat',
         :operatingsystemrelease => '6.6',
-        :rubyversion => '1.9.3'
+        :operatingsystemmajrelease => '6',
+        :rubyversion => '1.9.3',
       }
     end
 
@@ -116,8 +124,10 @@
       let(:facts) do
         {
           :osfamily => 'RedHat',
+          :operatingsystem => 'RedHat',
           :operatingsystemrelease => '6.6',
-          :rubyversion => '1.8.7'
+          :operatingsystemmajrelease => '6',
+          :rubyversion => '1.8.7',
         }
       end
       it do
@@ -137,8 +147,10 @@
     let(:facts) do
       {
         :osfamily => 'RedHat',
+        :operatingsystem => 'RedHat',
         :operatingsystemrelease => '7.1',
-        :rubyversion => '1.9.3'
+        :operatingsystemmajrelease => '7',
+        :rubyversion => '1.9.3',
       }
     end
 
@@ -175,7 +187,9 @@
       let(:facts) do
         {
           :osfamily => 'RedHat',
+          :operatingsystem => 'RedHat',
           :operatingsystemrelease => '7.1',
+          :operatingsystemmajrelease => '7',
           :rubyversion => '1.8.7'
         }
       end
@@ -196,8 +210,10 @@
     let(:facts) do
       {
         :osfamily => 'Debian',
+        :operatingsystem => 'Debian',
         :operatingsystemrelease => '8.1',
-        :rubyversion => '1.9.3'
+        :operatingsystemmajrelease => '8',
+        :rubyversion => '1.9.3',
       }
     end
 
@@ -232,7 +248,9 @@
       let(:facts) do
         {
           :osfamily => 'Debian',
+          :operatingsystem => 'Debian',
           :operatingsystemrelease => '8.1',
+          :operatingsystemmajrelease => '8',
           :rubyversion => '1.8.7'
         }
       end