diff --git a/Dockerfile.j2 b/Dockerfile.j2
index 1df8b41..0c7e405 100644
--- a/Dockerfile.j2
+++ b/Dockerfile.j2
@@ -1,3 +1,4 @@
+# syntax=docker/dockerfile:1
 # Dify AgentBox - All-in-one Development Environment
 # Generated from Dockerfile.j2
 # Base: {{ base.image }}