diff --git a/ccp/modules/datashield-compose.yml b/ccp/modules/datashield-compose.yml
index f2ecba4..f3c3f61 100644
--- a/ccp/modules/datashield-compose.yml
+++ b/ccp/modules/datashield-compose.yml
@@ -4,7 +4,7 @@ services:
     container_name: bridgehead-rstudio
     image: docker.verbis.dkfz.de/ccp/dktk-rstudio:latest
     environment:
-      USER: "${PROJECT}"
+      #DEFAULT_USER: "rstudio" # Please, don't remove this line. It is informative.
       PASSWORD: "${LDM_PASSWORD}"
       HTTP_RELATIVE_PATH: "/rstudio"
     labels: