diff --git a/pkgs/development/ocaml-modules/functoria/runtime.nix b/pkgs/development/ocaml-modules/functoria/runtime.nix
new file mode 100644
index 000000000000..806ae82b6ef4
--- /dev/null
+++ b/pkgs/development/ocaml-modules/functoria/runtime.nix
@@ -0,0 +1,17 @@
+{ lib, buildDunePackage, functoria, cmdliner, fmt, alcotest }:
+
+buildDunePackage {
+  pname = "functoria-runtime";
+
+  inherit (functoria) version src;
+
+  propagatedBuildInputs = [ cmdliner fmt ];
+  checkInputs = [ alcotest functoria];
+  doCheck = true;
+
+  meta = with lib; {
+    inherit (functoria.meta) homepage license;
+    description = "Runtime support library for functoria-generated code";
+    maintainers = [ maintainers.sternenseemann ];
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index af8799da20b1..ffb56823b26c 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -290,6 +290,8 @@ let
 
     functoria = callPackage ../development/ocaml-modules/functoria { };
 
+    functoria-runtime = callPackage ../development/ocaml-modules/functoria/runtime.nix { };
+
     functory = callPackage ../development/ocaml-modules/functory { };
 
     gen = callPackage ../development/ocaml-modules/gen { };