diff --git a/projects/miragesdk/examples/mirage-dhcp.yml b/projects/miragesdk/examples/mirage-dhcp.yml
index cdb441b31..fb93fbcd9 100644
--- a/projects/miragesdk/examples/mirage-dhcp.yml
+++ b/projects/miragesdk/examples/mirage-dhcp.yml
@@ -17,16 +17,6 @@ system:
      - /proc/sys/fs/binfmt_misc:/binfmt_misc
     read_only: true
     command: [/usr/bin/binfmt, -dir, /etc/binfmt.d/, -mount, /binfmt_misc]
-  - name: dhcp-client
-    network_mode: host
-    image: "mobylinux/dhcp-client:aaf811d77ff8d8b2e16ca4dd9d0a2849ef8977b6"
-    capabilities:
-     - CAP_NET_ADMIN # to bring eth0 up
-     - CAP_NET_RAW   # to read /dev/eth0
-    binds:
-     - /var/run/dhcp-client:/data
-    command: [/dhcp-client, -vv]
-    read_only: true
 daemon:
   - name: rngd
     image: "mobylinux/rngd:3dad6dd43270fa632ac031e99d1947f20b22eec9@sha256:1c93c1db7196f6f71f8e300bc1d15f0376dd18e8891c8789d77c8ff19f3a9a92"
@@ -35,6 +25,16 @@ daemon:
     oom_score_adj: -800
     read_only: true
     command: [/bin/tini, /usr/sbin/rngd, -f]
+  - name: dhcp-client
+    network_mode: host
+    image: "mobylinux/dhcp-client:f40cafe2ade4b115704750a85d21eb35b1116b91"
+    capabilities:
+     - CAP_NET_ADMIN # to bring eth0 up
+     - CAP_NET_RAW   # to read /dev/eth0
+    binds:
+     - /var/run/dhcp-client:/data
+    command: [/dhcp-client, -vv]
+    read_only: true
 files:
   - path: /var/run/dhcp-client/README
     contents: 'data for dhcp-client'
diff --git a/projects/miragesdk/src/.gitignore b/projects/miragesdk/src/.gitignore
index 21a037422..2a8d64394 100644
--- a/projects/miragesdk/src/.gitignore
+++ b/projects/miragesdk/src/.gitignore
@@ -5,6 +5,7 @@ obj/
 hash
 
 # Generated by jbuilder
+dhcp-client/calf/.merlin
 dhcp-client/bpf/.merlin
 dhcp-client/.merlin
 sdk/.merlin
diff --git a/projects/miragesdk/src/Dockerfile.build b/projects/miragesdk/src/Dockerfile.build
index 4c0cfb568..fe1d25f83 100644
--- a/projects/miragesdk/src/Dockerfile.build
+++ b/projects/miragesdk/src/Dockerfile.build
@@ -7,6 +7,14 @@ RUN opam pin -n add mirage-net-unix https://github.com/samoht/mirage-net-unix.gi
 RUN opam depext -iy mirage-net-unix logs-syslog irmin-unix cohttp decompress
 RUN opam depext -iy rawlink tuntap.1.0.0 jbuilder irmin-watcher inotify
 RUN opam install rresult
+RUN opam pin add cstruct --dev # for ppx/jbuilder
+RUN opam pin add tuntap 1.0.0
+
+# TMP: to compile the calf
+RUN opam pin add -n charrua-client https://github.com/yomimono/charrua-client.git#state-halfway
+RUN opam depext -uiy ocamlfind topkg-care ocamlbuild lwt mirage-types-lwt mirage
+RUN opam depext -uiy charrua-client cohttp conduit mirage-unix
+RUN opam depext -uiy mirage-net-fd ptime mirage-logs
 
 RUN sudo mkdir -p /src
 COPY ./sdk /src/sdk
@@ -16,7 +24,8 @@ RUN sudo chown opam -R /src
 USER opam
 WORKDIR /src
 
-RUN opam pin add cstruct --dev # for ppx/jbuilder
-
 RUN opam config exec -- jbuilder build dhcp-client/main.exe
 RUN sudo cp /src/_build/default/dhcp-client/main.exe /dhcp-client
+
+RUN opam config exec -- jbuilder build dhcp-client/calf/unikernel.exe
+RUN sudo cp /src/_build/default/dhcp-client/calf/unikernel.exe /dhcp-client-calf
diff --git a/projects/miragesdk/src/Makefile b/projects/miragesdk/src/Makefile
index 9fb07d3f0..a7cd8a225 100644
--- a/projects/miragesdk/src/Makefile
+++ b/projects/miragesdk/src/Makefile
@@ -8,7 +8,8 @@ OBJS=obj/dhcp-client
 
 MIRAGE_COMPILE=mobylinux/mirage-compile:f903b0e1b4328271364cc63f123ac49d56739cef@sha256:a54d9ca84d3f5998dba92ce83d60d49289cee8908a8b0f6ec280d30ab8edf46c
 CALF_OBJS=obj/dhcp-client-calf
-CALF_FILES=dhcp-client/calf/config.ml dhcp-client/calf/unikernel.ml
+CALF_FILES=dhcp-client/calf/config.ml dhcp-client/calf/unikernel.ml \
+	   dhcp-client/calf/jbuild
 
 default: push
 	@
@@ -34,18 +35,18 @@ enter-build: .build
 enter-dev: .dev
 	docker run --privileged -it -v `pwd`:/src $(shell cat .dev)
 
-$(CALF_OBJS): $(CALF_FILES)
-	mkdir -p obj/bin
-	( cd obj && \
-	  tar -C ../dhcp-client/calf -cf - $(CALF_FILES:dhcp-client/calf/%=%) | \
-	    docker run --rm -i --log-driver=none $(MIRAGE_COMPILE) -o dhcp-client-calf | \
-	    tar xf - || exit 1) && \
-	touch $@
+#$(CALF_OBJS): $(CALF_FILES)
+#	mkdir -p obj/bin
+#	( cd obj && \
+#	  tar -C ../dhcp-client/calf -cf - $(CALF_FILES:dhcp-client/calf/%=%) | \
+#	    docker run --rm -i --log-driver=none $(MIRAGE_COMPILE) -o dhcp-client-calf | \
+#	    tar xf - || exit 1) && \
+#	touch $@
 
-$(OBJS): .build $(FILES)
+$(OBJS) $(CALF_OBJS): .build $(FILES) $(CALF_FILES)
 	mkdir -p obj/usr/lib obj/bin
 	( cd obj && \
-	  docker run --rm --net=none --log-driver=none -i $(IMAGE):build tar -cf - $(OBJS:obj/%=/%) | tar xf - ) && \
+	  docker run --rm --net=none --log-driver=none -i $(IMAGE):build tar -cf - $(OBJS:obj/%=/%) $(CALF_OBJS:obj/%=/%) | tar xf - ) && \
 	touch $@
 
 hash: Makefile Dockerfile.build Dockerfile.pkg $(FILES) $(CALF_FILES) .build
@@ -77,7 +78,8 @@ dev-clean:
 	rm -rf _build dhcp-client/calf/_build
 
 dev:
-	cd dhcp-client/calf && mirage configure && make
 	jbuilder build dhcp-client/main.exe --dev
+	jbuilder build dhcp-client/calf/unikernel.exe --dev
+#	cd dhcp-client/calf && mirage configure && make
 
 .DELETE_ON_ERROR: