diff --git a/manifests/init.pp b/manifests/init.pp
index d70f819..c51e0e7 100644
--- a/manifests/init.pp
+++ b/manifests/init.pp
@@ -72,6 +72,7 @@ class zuul (
   $trusted_rw_dirs = [],
   $untrusted_ro_dirs = [],
   $untrusted_rw_dirs = [],
+  $disk_limit_per_job = '',
   $python_version = 2,
   $zuulv3 = false,
   $gearman_client_ssl_cert = undef,
diff --git a/templates/zuulv3.conf.erb b/templates/zuulv3.conf.erb
index 626a7df..b59b0bb 100644
--- a/templates/zuulv3.conf.erb
+++ b/templates/zuulv3.conf.erb
@@ -55,6 +55,9 @@ trusted_ro_dirs=<%= @trusted_ro_dirs.join(':') %>
 trusted_rw_dirs=<%= @trusted_rw_dirs.join(':') %>
 untrusted_ro_dirs=<%= @untrusted_ro_dirs.join(':') %>
 untrusted_rw_dirs=<%= @untrusted_rw_dirs.join(':') %>
+<% if @disk_limit_per_job != "" -%>
+disk_limit_per_job=<%= @disk_limit_per_job %>
+<% end -%>
 
 [web]
 log_config=/etc/zuul/web-logging.conf