diff --git a/pkgs/development/python-modules/diff_cover/default.nix b/pkgs/development/python-modules/diff_cover/default.nix
new file mode 100644
index 000000000000..b8286e7d6b1b
--- /dev/null
+++ b/pkgs/development/python-modules/diff_cover/default.nix
@@ -0,0 +1,36 @@
+{ stdenv, buildPythonPackage, fetchPypi, jinja2, jinja2_pluralize, pygments,
+  six, inflect, mock, nose, coverage, pycodestyle, flake8, pyflakes, git,
+  pylint, pydocstyle, fetchpatch }:
+
+buildPythonPackage rec {
+  pname = "diff_cover";
+  version = "1.0.2";
+
+  preCheck = ''
+    export LC_ALL=en_US.UTF-8;
+  '';
+
+  src = fetchPypi {
+    inherit pname version;
+    sha256 = "1wbp0kfv2mjxwnq2jlqmwvb71fywwc4x4azxi7ll5dll6nhjyd61";
+  };
+
+  patches = [
+    (fetchpatch {
+      name = "tests-fix.patch";
+      url = "https://github.com/Bachmann1234/diff-cover/commit/85c30959c8ed2aa3848f400095a2418f15bb7777.patch";
+      sha256 = "0xni4syrxww9kdv8495f416vqgfdys4w2hgf5rdi35hy3ybfslh0";
+    })
+  ];
+
+  propagatedBuildInputs = [ jinja2 jinja2_pluralize pygments six inflect ];
+
+  checkInputs = [ mock nose coverage pycodestyle flake8 pyflakes pylint pydocstyle git ];
+
+  meta = with stdenv.lib; {
+    description = "Automatically find diff lines that need test coverage";
+    homepage = https://github.com/Bachmann1234/diff-cover;
+    license = licenses.asl20;
+    maintainers = with maintainers; [ dzabraev ];
+  };
+}
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 139ee6eec252..125d89fe800c 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -205,6 +205,8 @@ in {
 
   dkimpy = callPackage ../development/python-modules/dkimpy { };
 
+  diff_cover = callPackage ../development/python-modules/diff_cover { };
+
   emcee = callPackage ../development/python-modules/emcee { };
 
   email_validator = callPackage ../development/python-modules/email-validator { };