diff --git a/Dockerfile_iot b/Dockerfile_iot
index 385bf20..73d3a22 100644
--- a/Dockerfile_iot
+++ b/Dockerfile_iot
@@ -2,7 +2,10 @@ FROM hosttoday/ht-docker-node:latest as stage1
 RUN apt-get update && apt-get install -y --no-install-recommends qemu-user-static binfmt-support
   # the following lines need to be run on a system that supports both architectures
   # update-binfmts --enable qemu-arm \
-  # update-binfmts --display qemu-arm
+  # && update-binfmts --display qemu-arm \
+  # && mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc \
+  # && echo ':arm:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/usr/bin/qemu-arm-static:' > /proc/sys/fs/binfmt_misc/register
 
 FROM arm32v7/node:lts-jessie as stage2
+COPY --from=stage1 /usr/bin/qemu-arm-static /usr/bin/qemu-arm-static