diff --git a/zuul.d/projects.yaml b/zuul.d/projects.yaml
index 4ef20b1128..2ceb74a46a 100644
--- a/zuul.d/projects.yaml
+++ b/zuul.d/projects.yaml
@@ -59,6 +59,7 @@
               - ^releasenotes/.*$
             voting: false
     gate:
+      fail-fast: true
       queue: octavia
       jobs:
         - openstack-tox-functional: