diff --git a/pkgs/development/ocaml-modules/postgresql/default.nix b/pkgs/development/ocaml-modules/postgresql/default.nix
index d87f6b39efb8..b27ea67eb283 100644
--- a/pkgs/development/ocaml-modules/postgresql/default.nix
+++ b/pkgs/development/ocaml-modules/postgresql/default.nix
@@ -17,7 +17,8 @@ buildDunePackage rec {
 
   nativeBuildInputs = [ postgresql ];
   buildInputs = [ dune-configurator ];
-
+  propagatedBuildInputs = [ postgresql ];
+  
   meta = {
     description = "Bindings to the PostgreSQL library";
     license = lib.licenses.lgpl21Plus;