diff --git a/roles/koji_builder/templates/oz.cfg.j2 b/roles/koji_builder/templates/oz.cfg.j2
index 740e62e9e3..60b145c1d6 100644
--- a/roles/koji_builder/templates/oz.cfg.j2
+++ b/roles/koji_builder/templates/oz.cfg.j2
@@ -26,6 +26,6 @@ safe_generation = no
 
 [timeouts]
 install = 14400
-inactivity = 600
+inactivity = 450
 boot = 300
 shutdown = 90