diff --git a/projects/miragesdk/src/Dockerfile.build b/projects/miragesdk/src/Dockerfile.build
index 449b1b5ad..4c0cfb568 100644
--- a/projects/miragesdk/src/Dockerfile.build
+++ b/projects/miragesdk/src/Dockerfile.build
@@ -6,6 +6,7 @@ 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 sudo mkdir -p /src
 COPY ./sdk /src/sdk
@@ -15,5 +16,7 @@ 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
diff --git a/projects/miragesdk/src/dhcp-client/main.ml b/projects/miragesdk/src/dhcp-client/main.ml
index e88041f87..35809c587 100644
--- a/projects/miragesdk/src/dhcp-client/main.ml
+++ b/projects/miragesdk/src/dhcp-client/main.ml
@@ -52,7 +52,7 @@ let run () cmd ethif path =
     ] in
     Ctl.v "/data" >>= fun ctl ->
     let fd = Init.(Fd.fd @@ Pipe.(priv ctl)) in
-    let ctl () = Ctl.serve ~routes ctl fd in
+    let ctl () = Ctl.Server.listen ~routes ctl fd in
     let handlers () = Handlers.watch path in
     Init.run ~net ~ctl ~handlers cmd
   )