diff --git a/manifests/puppet_ruby.pp b/manifests/puppet_ruby.pp
index 291f1da..254ff67 100644
--- a/manifests/puppet_ruby.pp
+++ b/manifests/puppet_ruby.pp
@@ -30,7 +30,7 @@
   }
 
   exec { 'bundle install':
-    command => 'bundle install --path vendor --jobs $(npoc) && touch .bundle_install_finished',
+    command => 'bundle install --path vendor --jobs $(nproc) && touch .bundle_install_finished',
     path    => "${facts['path']}:/opt/puppetlabs/puppet/bin",
     cwd     => $hdm::hdm_path,
     creates => "${hdm::hdm_path}/.bundle_install_finished",