diff --git a/README.md b/README.md
index e4a00cc..73ba674 100644
--- a/README.md
+++ b/README.md
@@ -142,7 +142,7 @@ If this is an ECDC/EHDS2 installation, switch to the ```ehds2``` branch and copy
 ```shell
 cd /srv/docker/bridgehead
 sudo git checkout ehds2
-mkdir test data
+sudo mkdir test data
 sudo mkdir -p /etc/bridgehead/
 sudo cp bbmri/modules/bbmri.conf /etc/bridgehead/
 sudo chown -R bridgehead:root . /etc/bridgehead