diff --git a/hack/jenkins/job-configs/kubernetes-kubemark.yaml b/hack/jenkins/job-configs/kubernetes-kubemark.yaml
index d4785ed3beb..760c56ce904 100644
--- a/hack/jenkins/job-configs/kubernetes-kubemark.yaml
+++ b/hack/jenkins/job-configs/kubernetes-kubemark.yaml
@@ -42,7 +42,8 @@
             cron-string: '@hourly'
         - 'gce-scale':
             description: 'Run Density test on Kubemark in very large cluster. Currently only scheduled to run every 6 hours so as not to waste too many resources.'
-            timeout: 480
+            # 12h - load tests take really, really, really long time.
+            timeout: 720
             cron-string: 'H H/8 * * *'
     jobs:
         - 'kubernetes-kubemark-{suffix}'