diff --git a/files/datadog.list b/files/datadog.list
index 485ee1c5..ee736bb0 100644
--- a/files/datadog.list
+++ b/files/datadog.list
@@ -1 +1 @@
-deb http://apt.datadoghq.com/ stable main
+deb https://apt.datadoghq.com/ stable main
diff --git a/spec/classes/datadog_agent_ubuntu_spec.rb b/spec/classes/datadog_agent_ubuntu_spec.rb
index 0c454789..d51ea107 100644
--- a/spec/classes/datadog_agent_ubuntu_spec.rb
+++ b/spec/classes/datadog_agent_ubuntu_spec.rb
@@ -8,6 +8,11 @@
     }
   end
 
+  it do
+    contain_file('/etc/apt/sources.list.d/datadog.list')\
+      .with_content(%r{deb\s+https://apt.datadoghq.com/\s+stable\s+main})
+  end
+
   # it should install the mirror
   it { should contain_exec('datadog_key') }
   it do