diff --git a/linol-lwt.opam b/linol-lwt.opam
index 129aa4d3..25fd146f 100644
--- a/linol-lwt.opam
+++ b/linol-lwt.opam
@@ -16,6 +16,7 @@ depends: [
   "jsonrpc" { >= "1.4" & < "1.5" }
   "containers" { >= "3.0" & < "4.0" }
   "lwt" { >= "5.1" & < "6.0" }
+  "base-unix"
   "yojson" { >= "1.6" }
   "ocaml" { >= "4.08" }
   "odoc" { with-doc }
diff --git a/src/dune b/src/dune
index d0cd19b3..525ea797 100644
--- a/src/dune
+++ b/src/dune
@@ -3,4 +3,4 @@
   (name linol)
   (public_name linol)
   (flags :standard -warn-error -a+8)
-  (libraries containers lwt lwt.unix lsp))
+  (libraries containers lsp))