diff --git a/docker/scripts/environment.sh b/docker/scripts/environment.sh
index e9812be..fdcc9d9 100755
--- a/docker/scripts/environment.sh
+++ b/docker/scripts/environment.sh
@@ -6,6 +6,7 @@ DESKTOP_ENVIRONMENT_CONTAINER_NAME=${DESKTOP_ENVIRONMENT_CONTAINER_NAME-$DESKTOP
 DESKTOP_ENVIRONMENT_GITHUB_TOKEN=${DESKTOP_ENVIRONMENT_GITHUB_TOKEN-}
 DESKTOP_ENVIRONMENT_GITHUB_USER=$(git --git-dir $REPO_ROOT/.git remote get-url origin | sed -E 's;.*github.com.(.*)/.*;\1;' | tr A-Z a-z)
 DESKTOP_ENVIRONMENT_REGISTRY=${DESKTOP_ENVIRONMENT_REGISTRY-$DESKTOP_ENVIRONMENT_GITHUB_USER}
+DESKTOP_ENVIRONMENT_TTY=${DESKTOP_ENVIRONMENT_TTY-3}
 
 # Desktop environment repository information
 echo export DESKTOP_ENVIRONMENT_CONTAINER_IMAGE=$DESKTOP_ENVIRONMENT_CONTAINER_IMAGE
diff --git a/docker/scripts/start.sh b/docker/scripts/start.sh
index d57f030..9ee053a 100755
--- a/docker/scripts/start.sh
+++ b/docker/scripts/start.sh
@@ -21,6 +21,7 @@ docker run \
   --device /dev/tty3 \
   --device /dev/video0 \
   --env DESKTOP_ENVIRONMENT_GITHUB_TOKEN \
+  --env DESKTOP_ENVIRONMENT_TTY \
   --env DESKTOP_ENVIRONMENT_USER \
   --group-add audio \
   --group-add docker \