diff --git a/docker/scripts/environment.sh b/docker/scripts/environment.sh
index 6109c23..cfc1a72 100755
--- a/docker/scripts/environment.sh
+++ b/docker/scripts/environment.sh
@@ -1,6 +1,6 @@
 REPO_ROOT=$(dirname $(readlink -f $0))/../..
 
-DESKTOP_ENVIRONMENT_USER=$USER
+DESKTOP_ENVIRONMENT_USER=${DESKTOP_ENVIRONMENT_USER-$USER}
 DESKTOP_ENVIRONMENT_CONTAINER_IMAGE=desktop-environment
 DESKTOP_ENVIRONMENT_CONTAINER_NAME=${DESKTOP_ENVIRONMENT_CONTAINER_NAME-$DESKTOP_ENVIRONMENT_CONTAINER_IMAGE}
 DESKTOP_ENVIRONMENT_GITHUB_TOKEN=${DESKTOP_ENVIRONMENT_GITHUB_TOKEN-}