diff --git a/continuousintegration/buildtree_runner/README.md b/continuousintegration/buildtree_runner/README.md
index 6328959bc38324466d9ae2dc39c35fbc8729d3f4..b9fb5334d70c253ea3fcc8e0280afd48f59af5e6 100644
--- a/continuousintegration/buildtree_runner/README.md
+++ b/continuousintegration/buildtree_runner/README.md
@@ -75,7 +75,7 @@ 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 -D -O
+sudo ./create_instance.sh -n ctatest -b /home/eric -B CTA-build -D -O
 ```
 
 and the tests will run like in the continuous integration environment.