diff --git a/jump-box/startup.bash b/jump-box/startup.bash
index f354cb9..7f04fa9 100644
--- a/jump-box/startup.bash
+++ b/jump-box/startup.bash
@@ -10,8 +10,8 @@ mkdir -p "$(dirname "/etc/ssh/sshd_config.d/10-hostkeys.conf")"
 printf 'HostKey %s\n' "${keys[@]}" > "/etc/ssh/sshd_config.d/10-hostkeys.conf"
 
 # Setup the DinD socket:
-if [ -z DOCKER_RUN_DIR ]; then
-    ln -s /run/dind/docker.sock /var/run/docker.sock || echo "Failed to symlink Docker socket!"
+if [ -n DOCKER_RUN_DIR ]; then
+    ln -s "$DOCKER_RUN_DIR/docker.sock" /var/run/docker.sock || echo "Failed to symlink Docker socket!"
 fi
 
 # Setup the target user and their group