diff --git a/deploy/docker/Dockerfile b/deploy/docker/Dockerfile
index 5bb6ba9cc..d20826954 100644
--- a/deploy/docker/Dockerfile
+++ b/deploy/docker/Dockerfile
@@ -9,7 +9,8 @@ ARG EMQX_NAME=emqx
 ARG PKG_VSN
 
 ENV EMQX_RELUP=false
-ENV DEBUG=${DEBUG}
+ENV DEBUG=0
+ENV DIAGNOSTIC=0
 ENV EMQX_REL_FORM='docker'
 
 WORKDIR /emqx/