diff --git a/zuul-playbooks/build-dashboard.yaml b/zuul-playbooks/build-dashboard.yaml
index 6d3b831..1ffcdb4 100644
--- a/zuul-playbooks/build-dashboard.yaml
+++ b/zuul-playbooks/build-dashboard.yaml
@@ -5,3 +5,10 @@
     - set-zuul-log-path-fact
     - role: npm
       npm_command: build
+  environment:
+    PUBLIC_URL: './'
+    # NOTE: using "./" is not enough to support html5 links, even with
+    # rewrite rules for unknown files, accessing 'job/devstack' will make
+    # the dashboard load static files from 'job/static/...'
+    # This works for the preview dashboard that can only be loaded from the
+    # npm/html directory anyway.