diff --git a/continuousintegration/buildtree_runner/README.md b/continuousintegration/buildtree_runner/README.md
index 3675f768c5c522bc940ba608cc85e95a0a26dc8c..ad973da9b2a34a872c48547da5c15b22ebb781f0 100644
--- a/continuousintegration/buildtree_runner/README.md
+++ b/continuousintegration/buildtree_runner/README.md
@@ -70,7 +70,7 @@ The test instance can then be created by running (typically):
 
 ```
 cd ~/CTA/continuousintegration/orchestration
-./create_instance.sh -n ctatest -b /home/eric -B CTA-build
+./create_instance.sh -n ctatest -b /home/eric -B CTA-build -D -O
 ```
 
 and the tests will run like in the continuous integration environment.