diff --git a/spec/type_aliases/plugin_spec.rb b/spec/type_aliases/plugin_spec.rb
index 1ba036af..0891edfe 100644
--- a/spec/type_aliases/plugin_spec.rb
+++ b/spec/type_aliases/plugin_spec.rb
@@ -3,7 +3,7 @@
 require 'spec_helper'
 
 describe 'Letsencrypt::Plugin' do
-  it { is_expected.to allow_values('apache', 'standalone', 'webroot', 'nginx', 'dns-route53', 'dns-google', 'dns-cloudflare', 'dns-rfc2136') }
+  it { is_expected.to allow_values('apache', 'standalone', 'webroot', 'nginx', 'dns-azure', 'dns-route53', 'dns-google', 'dns-cloudflare', 'dns-rfc2136') }
   it { is_expected.not_to allow_value(nil) }
   it { is_expected.not_to allow_value('foo') }
   it { is_expected.not_to allow_value('custom') }
diff --git a/types/plugin.pp b/types/plugin.pp
index 21820360..56dffb61 100644
--- a/types/plugin.pp
+++ b/types/plugin.pp
@@ -4,6 +4,7 @@
   'standalone',
   'webroot',
   'nginx',
+  'dns-azure',
   'dns-route53',
   'dns-google',
   'dns-cloudflare',