diff --git a/spec/classes/config_spec.rb b/spec/classes/config_spec.rb
index e073230..3434079 100644
--- a/spec/classes/config_spec.rb
+++ b/spec/classes/config_spec.rb
@@ -32,21 +32,21 @@ describe 'nginx::config' do
           :path   => "/etc/nginx",
           :ensure => 'directory',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/etc/nginx/conf.d").only_with(
           :path   => '/etc/nginx/conf.d',
           :ensure => 'directory',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/etc/nginx/conf.mail.d").only_with(
           :path   => '/etc/nginx/conf.mail.d',
           :ensure => 'directory',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/etc/nginx/conf.d/vhost_autogen.conf").with_ensure('absent') }
@@ -54,30 +54,30 @@ describe 'nginx::config' do
         it { should contain_file("/var/nginx").with(
           :ensure => 'directory',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/var/nginx/client_body_temp").with(
           :ensure => 'directory',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/var/nginx/proxy_temp").with(
           :ensure => 'directory',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file('/etc/nginx/sites-enabled/default').with_ensure('absent') }
         it { should contain_file("/etc/nginx/nginx.conf").with(
           :ensure => 'file',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/etc/nginx/conf.d/proxy.conf").with(
           :ensure => 'file',
           :owner => 'root',
-          :group => '0',
+          :group => 'root',
           :mode => '0644'
         )}
         it { should contain_file("/tmp/nginx.d").with(
diff --git a/spec/defines/resource_geo_spec.rb b/spec/defines/resource_geo_spec.rb
index d2b9e77..81c7005 100644
--- a/spec/defines/resource_geo_spec.rb
+++ b/spec/defines/resource_geo_spec.rb
@@ -38,7 +38,7 @@ describe 'nginx::resource::geo' do
       it { should contain_file("/etc/nginx/conf.d/#{title}-geo.conf").with(
         {
           'owner'   => 'root',
-          'group'   => '0',
+          'group'   => 'root',
           'mode'    => '0644',
           'ensure'  => 'file',
           'content' => /geo \$#{title}/,
diff --git a/spec/defines/resource_mailhost_spec.rb b/spec/defines/resource_mailhost_spec.rb
index 88542cf..e59adfd 100644
--- a/spec/defines/resource_mailhost_spec.rb
+++ b/spec/defines/resource_mailhost_spec.rb
@@ -30,7 +30,7 @@ describe 'nginx::resource::mailhost' do
       it { should contain_class("nginx::config") }
       it { should contain_concat("/etc/nginx/conf.mail.d/#{title}.conf").with({
         'owner' => 'root',
-        'group' => '0',
+        'group' => 'root',
         'mode'  => '0644',
       })}
       it { should contain_concat__fragment("#{title}-header") }
diff --git a/spec/defines/resource_map_spec.rb b/spec/defines/resource_map_spec.rb
index 71e2490..e8aa50c 100644
--- a/spec/defines/resource_map_spec.rb
+++ b/spec/defines/resource_map_spec.rb
@@ -38,7 +38,7 @@ describe 'nginx::resource::map' do
       it { should contain_file("/etc/nginx/conf.d/#{title}-map.conf").with(
         {
           'owner'   => 'root',
-          'group'   => '0',
+          'group'   => 'root',
           'mode'    => '0644',
           'ensure'  => 'file',
           'content' => /map \$uri \$#{title}/,
diff --git a/spec/defines/resource_vhost_spec.rb b/spec/defines/resource_vhost_spec.rb
index fd1d238..81568e9 100644
--- a/spec/defines/resource_vhost_spec.rb
+++ b/spec/defines/resource_vhost_spec.rb
@@ -32,7 +32,7 @@ describe 'nginx::resource::vhost' do
       it { should contain_class("nginx::config") }
       it { should contain_concat("/etc/nginx/sites-available/#{title}.conf").with({
         'owner' => 'root',
-        'group' => '0',
+        'group' => 'root',
         'mode'  => '0644',
       })}
       it { should contain_concat__fragment("#{title}-header").with_content(%r{access_log[ ]+/var/log/nginx/www\.rspec\.example\.com\.access\.log}) }