diff --git a/pkgs/development/ocaml-modules/mirage-flow/combinators.nix b/pkgs/development/ocaml-modules/mirage-flow/combinators.nix
index 2ad6e5b0b97..d4904e77430 100644
--- a/pkgs/development/ocaml-modules/mirage-flow/combinators.nix
+++ b/pkgs/development/ocaml-modules/mirage-flow/combinators.nix
@@ -3,7 +3,7 @@
 buildDunePackage {
   pname = "mirage-flow-combinators";
 
-  inherit (mirage-flow) version src;
+  inherit (mirage-flow) version useDune2 src;
 
   propagatedBuildInputs = [ ocaml_lwt logs cstruct mirage-clock mirage-flow ];
 
diff --git a/pkgs/development/ocaml-modules/mirage-flow/default.nix b/pkgs/development/ocaml-modules/mirage-flow/default.nix
index 25bb5e0f32d..d6ba6603596 100644
--- a/pkgs/development/ocaml-modules/mirage-flow/default.nix
+++ b/pkgs/development/ocaml-modules/mirage-flow/default.nix
@@ -4,6 +4,7 @@ buildDunePackage rec {
   pname = "mirage-flow";
   version = "2.0.1";
 
+  useDune2 = true;
   minimumOCamlVersion = "4.05";
 
   src = fetchurl {
diff --git a/pkgs/development/ocaml-modules/mirage-flow/unix.nix b/pkgs/development/ocaml-modules/mirage-flow/unix.nix
index 7a20ca87f8f..3bd676b45fa 100644
--- a/pkgs/development/ocaml-modules/mirage-flow/unix.nix
+++ b/pkgs/development/ocaml-modules/mirage-flow/unix.nix
@@ -4,7 +4,7 @@
 buildDunePackage {
   pname = "mirage-flow-unix";
 
-  inherit (mirage-flow) version src;
+  inherit (mirage-flow) version useDune2 src;
 
   propagatedBuildInputs = [ fmt logs mirage-flow ocaml_lwt cstruct ];