diff --git a/pkgs/development/ocaml-modules/conan/database.nix b/pkgs/development/ocaml-modules/conan/database.nix
new file mode 100644
index 000000000000..d268f302b115
--- /dev/null
+++ b/pkgs/development/ocaml-modules/conan/database.nix
@@ -0,0 +1,28 @@
+{
+  buildDunePackage,
+  conan,
+  alcotest,
+  crowbar,
+  fmt,
+  rresult,
+}:
+
+buildDunePackage {
+  pname = "conan-database";
+  inherit (conan) version src;
+
+  propagatedBuildInputs = [ conan ];
+
+  doCheck = true;
+
+  checkInputs = [
+    alcotest
+    crowbar
+    fmt
+    rresult
+  ];
+
+  meta = conan.meta // {
+    description = "Database of decision trees to recognize MIME type";
+  };
+}
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index fa10316c7067..b5d34d236ece 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -272,6 +272,8 @@ let
 
         conan = callPackage ../development/ocaml-modules/conan { };
 
+        conan-database = callPackage ../development/ocaml-modules/conan/database.nix { };
+
         conduit = callPackage ../development/ocaml-modules/conduit { };
 
         conduit-async = callPackage ../development/ocaml-modules/conduit/async.nix { };