diff --git a/manifests/vhost.pp b/manifests/vhost.pp
index eec1a415e..60f835673 100644
--- a/manifests/vhost.pp
+++ b/manifests/vhost.pp
@@ -2559,7 +2559,7 @@
     concat::fragment { "${name}-serveralias":
       target  => "${priority_real}${filename}.conf",
       order   => 210,
-      content => epp('apache/vhost/_serveralias.epp', { 'serveraliases' => $serveraliases }),
+      content => epp('apache/vhost/_serveralias.epp', { 'serveraliases' => [$serveraliases].flatten }),
     }
   }
 
diff --git a/spec/defines/vhost_spec.rb b/spec/defines/vhost_spec.rb
index 57dcfd811..b55f5775f 100644
--- a/spec/defines/vhost_spec.rb
+++ b/spec/defines/vhost_spec.rb
@@ -776,7 +776,7 @@
           }
 
           it { is_expected.to contain_concat__fragment('rspec.example.com-scriptalias') }
-          it { is_expected.to contain_concat__fragment('rspec.example.com-serveralias') }
+          it { is_expected.to contain_concat__fragment('rspec.example.com-serveralias').with_content(%r{^  ServerAlias test-example\.com$}) }
 
           it {
             expect(subject).to contain_concat__fragment('rspec.example.com-setenv')
@@ -1221,6 +1221,28 @@
           it { is_expected.not_to contain_concat__fragment('NameVirtualHost 127.0.0.1:8080') }
         end
 
+        describe 'serveraliases parameter' do
+          let(:params) { default_params.merge(serveraliases: serveraliases) }
+
+          context 'with a string' do
+            let(:serveraliases) { 'alias.example.com' }
+
+            it { is_expected.to compile.with_all_deps }
+            it { is_expected.to contain_concat__fragment('rspec.example.com-serveralias').with_content(%r{^  ServerAlias alias\.example\.com$}) }
+          end
+
+          context 'with an array' do
+            let(:serveraliases) { ['alias1.example.com', 'alias2.example.com'] }
+
+            it { is_expected.to compile.with_all_deps }
+            it do
+              expect(subject).to contain_concat__fragment('rspec.example.com-serveralias')
+                .with_content(%r{^  ServerAlias alias1\.example\.com$})
+                .with_content(%r{^  ServerAlias alias2\.example\.com$})
+            end
+          end
+        end
+
         context 'vhost with multiple ip addresses, multiple ports' do
           let :params do
             {
diff --git a/templates/vhost/_serveralias.epp b/templates/vhost/_serveralias.epp
index 5b9abb281..1baf18c9b 100644
--- a/templates/vhost/_serveralias.epp
+++ b/templates/vhost/_serveralias.epp
@@ -1,7 +1,8 @@
+<%- | Array[String] $serveraliases | -%>
 <% unless $serveraliases.empty { -%>
 
   ## Server aliases
-  <%- Array($serveraliases).each |$serveralias| { -%>
+  <%- $serveraliases.each |$serveralias| { -%>
   ServerAlias <%= $serveralias %>
   <%- } -%>
 <% } -%>