diff --git a/Tools/autotest/copter_optflow.parm b/Tools/autotest/copter_optflow.parm
index 7c22aa98fc..ab5af60294 100644
--- a/Tools/autotest/copter_optflow.parm
+++ b/Tools/autotest/copter_optflow.parm
@@ -1,3 +1,4 @@
+ARMING_CHECK -33
 FLOW_ENABLE 1
 RNGFND_TYPE 1
 RNGFND_MAX_CM 4000