diff --git a/roles/gitlab_runner/files/domain_template.xml b/roles/gitlab_runner/files/domain_template.xml
index eab3b188cd7066deda3d6f49ec7e5e8db9638f68..7c359a10c512f924bacedd6353f39a72f6e33557 100644
--- a/roles/gitlab_runner/files/domain_template.xml
+++ b/roles/gitlab_runner/files/domain_template.xml
@@ -28,6 +28,7 @@
     <interface type='network'>
       <source network='default'/>
       <model type='virtio'/>
+      <filterref filter='clean-traffic'/>
     </interface>
     <rng model='virtio'>
       <backend model='random'>/dev/urandom</backend>