diff --git a/pkgs/development/ocaml-modules/crowbar/default.nix b/pkgs/development/ocaml-modules/crowbar/default.nix
new file mode 100644
index 000000000000..0189026e346b
--- /dev/null
+++ b/pkgs/development/ocaml-modules/crowbar/default.nix
@@ -0,0 +1,32 @@
+{ stdenv, buildDunePackage, fetchFromGitHub, ocplib-endian, cmdliner, afl-persistent
+, calendar, fpath, pprint, uutf, uunf, uucp }:
+
+buildDunePackage rec {
+  pname = "crowbar";
+  version = "0.2";
+
+  src = fetchFromGitHub {
+    owner  = "stedolan";
+    repo   = pname;
+    rev    = "v${version}";
+    sha256 = "0wjfc9irvirfkic32ivvj6qb7r838w08b0d3vmngigbjpjyc9b14";
+  };
+
+  minimumOCamlVersion = "4.08";
+
+  # disable xmldiff tests, so we don't need to package unmaintained and legacy pkgs
+  postPatch = "rm -rf examples/xmldiff";
+
+  propagatedBuildInputs = [ ocplib-endian cmdliner afl-persistent ];
+  checkInputs = [ calendar fpath pprint uutf uunf uucp ];
+  # uunf is broken on aarch64
+  doCheck = !stdenv.isAarch64;
+
+  meta = with stdenv.lib; {
+    description = "Property fuzzing for OCaml";
+    homepage = "https://github.com/stedolan/crowbar";
+    license = licenses.mit;
+    maintainers = [ maintainers.sternenseemann ];
+  };
+}
+
diff --git a/pkgs/top-level/ocaml-packages.nix b/pkgs/top-level/ocaml-packages.nix
index f75ecabe6348..602e131ad9e6 100644
--- a/pkgs/top-level/ocaml-packages.nix
+++ b/pkgs/top-level/ocaml-packages.nix
@@ -161,6 +161,8 @@ let
 
     cpuid = callPackage ../development/ocaml-modules/cpuid { };
 
+    crowbar = callPackage ../development/ocaml-modules/crowbar { };
+
     crunch = callPackage ../development/tools/ocaml/crunch { };
 
     cryptokit = callPackage ../development/ocaml-modules/cryptokit { };