diff --git a/pkgs/development/ocaml-modules/io-page/default.nix b/pkgs/development/ocaml-modules/io-page/default.nix
index 31ae0cfc19ed..46908369e571 100644
--- a/pkgs/development/ocaml-modules/io-page/default.nix
+++ b/pkgs/development/ocaml-modules/io-page/default.nix
@@ -4,6 +4,7 @@ buildDunePackage rec {
   pname = "io-page";
   version = "2.3.0";
 
+  useDune2 = true;
   minimumOCamlVersion = "4.02.3";
 
   src = fetchurl {
diff --git a/pkgs/development/ocaml-modules/io-page/unix.nix b/pkgs/development/ocaml-modules/io-page/unix.nix
index b3f7f878b276..843451b30866 100644
--- a/pkgs/development/ocaml-modules/io-page/unix.nix
+++ b/pkgs/development/ocaml-modules/io-page/unix.nix
@@ -3,7 +3,7 @@
 buildDunePackage {
   pname = "io-page-unix";
 
-  inherit (io-page) version src minimumOCamlVersion;
+  inherit (io-page) version src useDune2 minimumOCamlVersion;
 
   propagatedBuildInputs = [ cstruct io-page ];
   checkInputs = [ ounit ];