diff --git a/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix
new file mode 100644
index 000000000000..862659fde8d9
--- /dev/null
+++ b/pkgs/applications/networking/instant-messengers/telegram/kotatogram-desktop/default.nix
@@ -0,0 +1,54 @@
+{ mkDerivation, lib, fetchFromGitHub, pkg-config, python3, cmake, ninja
+, qtbase, qtimageformats, enchant, xdg_utils, ffmpeg, openalSoft, lzma
+, lz4, xxHash, zlib, minizip, openssl, libtgvoip, range-v3
+}:
+
+with lib;
+
+mkDerivation rec {
+  pname = "kotatogram-desktop";
+  version = "1.1.5";
+
+  src = fetchFromGitHub {
+    owner = "kotatogram";
+    repo = "kotatogram-desktop";
+    rev = "k${version}";
+    sha256 = "1j5wn3k1mr2c39szmyzm0pf720jmbllcaj40p2ydx0p3lir1s760";
+    fetchSubmodules = true;
+  };
+
+  postPatch = ''
+    substituteInPlace Telegram/lib_spellcheck/spellcheck/platform/linux/linux_enchant.cpp \
+      --replace '"libenchant-2.so.2"' '"${enchant}/lib/libenchant-2.so.2"'
+  '';
+
+  nativeBuildInputs = [ pkg-config python3 cmake ninja ];
+
+  buildInputs = [
+    qtbase qtimageformats ffmpeg openalSoft lzma lz4 xxHash
+    zlib minizip openssl enchant libtgvoip range-v3
+  ];
+
+  qtWrapperArgs = [
+    "--prefix PATH : ${xdg_utils}/bin"
+  ];
+
+  cmakeFlags = [
+    "-DTDESKTOP_API_TEST=ON"
+    "-DTDESKTOP_DISABLE_GTK_INTEGRATION=ON"
+    "-DDESKTOP_APP_USE_PACKAGED_RLOTTIE=OFF"
+  ];
+
+  meta = {
+    description = "Kotatogram – experimental Telegram Desktop fork";
+    longDescription = ''
+      Unofficial desktop client for the Telegram messenger, based on Telegram Desktop.
+
+      It contains some useful (or purely cosmetic) features, but they could be unstable. A detailed list is available here: https://kotatogram.github.io/changes
+    '';
+    license = licenses.gpl3;
+    platforms = platforms.linux;
+    homepage = https://kotatogram.github.io;
+    maintainers = with maintainers; [ ilya-fedin ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2bf409b209ab..f79c8c6e87dc 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -19914,6 +19914,8 @@ in
 
   konversation = libsForQt5.callPackage ../applications/networking/irc/konversation { };
 
+  kotatogram-desktop = qt5.callPackage ../applications/networking/instant-messengers/telegram/kotatogram-desktop { };
+
   krita = libsForQt5.callPackage ../applications/graphics/krita {
     openjpeg = openjpeg_1;
   };