diff --git a/src/lib_protocol_compiler/jbuild_protocol_template b/src/lib_protocol_compiler/jbuild_protocol_template
index 907154d92..be5dbff3e 100644
--- a/src/lib_protocol_compiler/jbuild_protocol_template
+++ b/src/lib_protocol_compiler/jbuild_protocol_template
@@ -76,6 +76,11 @@ let () = Format.kasprintf Jbuild_plugin.V1.send {|
   (modes (native))
   (modules (Tezos_protocol_%s_dummy))))
 
+(install
+  ((section lib)
+   (files   ("tezos_protocol_%s.cmx" "tezos_protocol_%s.cmi"))
+   (package tezos-protocol-%s)))
+
 (alias
  ((name runtest_sandbox)
   (deps (tezos_protocol_%s.cmx))))
@@ -88,6 +93,6 @@ let () = Format.kasprintf Jbuild_plugin.V1.send {|
 |}
     version version version version version version version version
     path
-    version version version
+    version version version version version version
     Format.(pp_print_list (fun ppf -> Format.fprintf ppf "%S"))
     sources
diff --git a/src/lib_protocol_environment_client/tezos-protocol-environment-client.opam b/src/lib_protocol_environment_client/tezos-protocol-environment-client.opam
index 6d795dd44..732317837 100644
--- a/src/lib_protocol_environment_client/tezos-protocol-environment-client.opam
+++ b/src/lib_protocol_environment_client/tezos-protocol-environment-client.opam
@@ -11,6 +11,7 @@ depends: [
   "jbuilder" { build & >= "1.0+beta15" }
   "tezos-base"
   "tezos-micheline"
+  "tezos-protocol-environment-sigs"
 ]
 build: [
   [ "jbuilder" "build" "-p" name "-j" jobs ]