diff --git a/pkgs/development/ocaml-modules/zmq/default.nix b/pkgs/development/ocaml-modules/zmq/default.nix
index 003181044329..af8c78cb9938 100644
--- a/pkgs/development/ocaml-modules/zmq/default.nix
+++ b/pkgs/development/ocaml-modules/zmq/default.nix
@@ -15,10 +15,9 @@ buildDunePackage rec {
     hash = "sha256-tetCmVg27/WHZ+HMwKZVHCrHTzWAlKwkAjNDibB1+6g=";
   };
 
-  buildInputs = [
-    czmq
-    dune-configurator
-  ];
+  buildInputs = [ dune-configurator ];
+
+  propagatedBuildInputs = [ czmq ];
 
   meta = {
     description = "ZeroMQ bindings for OCaml";