diff --git a/Dockerfile b/Dockerfile
index 739dcb6..5734d6d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -38,5 +38,8 @@ COPY sandbox-prompt-dind.md /etc/ccc/sandbox-prompt-dind.md
 COPY entrypoint.sh /usr/local/bin/ccc-entrypoint
 RUN chmod +x /usr/local/bin/ccc-entrypoint
 
+## allow as root
+ENV IS_SANDBOX=1 
+
 ENTRYPOINT ["/usr/local/bin/ccc-entrypoint"]
 CMD []