diff --git a/devstack-vm-gate.sh b/devstack-vm-gate.sh
index 867d5c95..47e72996 100755
--- a/devstack-vm-gate.sh
+++ b/devstack-vm-gate.sh
@@ -88,6 +88,7 @@ FIXED_NETWORK_SIZE=256
 VIRT_DRIVER=$DEVSTACK_GATE_VIRT_DRIVER
 SWIFT_REPLICAS=1
 SCREEN_DEV=False
+LOG_COLOR=False
 export OS_NO_CACHE=True
 EOF