diff --git a/lib/puppet/type/kubectl_apply.rb b/lib/puppet/type/kubectl_apply.rb
index 6a9fc15..791fe2e 100644
--- a/lib/puppet/type/kubectl_apply.rb
+++ b/lib/puppet/type/kubectl_apply.rb
@@ -1,5 +1,7 @@
 # frozen_string_literal: true
 
+require 'puppet/parameter/boolean'
+
 Puppet::Type.newtype(:kubectl_apply) do
   desc <<-DOC
   Example: