diff --git a/pkgs/development/ocaml-modules/caqti/eio.nix b/pkgs/development/ocaml-modules/caqti/eio.nix
new file mode 100644
index 000000000000..4290da755539
--- /dev/null
+++ b/pkgs/development/ocaml-modules/caqti/eio.nix
@@ -0,0 +1,23 @@
+{
+  buildDunePackage,
+  caqti,
+  logs,
+  eio,
+}:
+
+buildDunePackage {
+  pname = "caqti-eio";
+  inherit (caqti) version src;
+
+  minimalOCamlVersion = "5.1";
+
+  propagatedBuildInputs = [
+    caqti
+    logs
+    eio
+  ];
+
+  meta = caqti.meta // {
+    description = "Eio support for Caqti";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index 8286936313f0..0233f6df225a 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -196,6 +196,8 @@ let
 
         caqti-dynload = callPackage ../development/ocaml-modules/caqti/dynload.nix { };
 
+        caqti-eio = callPackage ../development/ocaml-modules/caqti/eio.nix { };
+
         caqti-lwt = callPackage ../development/ocaml-modules/caqti/lwt.nix { };
 
         caqti-type-calendar = callPackage ../development/ocaml-modules/caqti/type-calendar.nix { };