diff --git a/tests/pillar/compute_cluster.sls b/tests/pillar/compute_cluster.sls
index 378de4f..53ff9c6 100644
--- a/tests/pillar/compute_cluster.sls
+++ b/tests/pillar/compute_cluster.sls
@@ -14,6 +14,7 @@
     vnc_keymap: en-gb
     resume_guests_state_on_host_boot: True
     preallocate_images: space
+    instance_build_timeout: 600
     bind:
       vnc_address: 127.0.0.1
       vnc_port: 6080