diff --git a/pkgs/applications/networking/instant-messengers/quaternion/default.nix b/pkgs/applications/networking/instant-messengers/quaternion/default.nix
index 55b24f71fb64..5acf71dbcb63 100644
--- a/pkgs/applications/networking/instant-messengers/quaternion/default.nix
+++ b/pkgs/applications/networking/instant-messengers/quaternion/default.nix
@@ -1,36 +1,42 @@
 { stdenv, lib, fetchFromGitHub, qtbase, qtquickcontrols, cmake
-, qttools, libqmatrixclient }:
+, qttools, qtmultimedia
+, libqmatrixclient_0_4, libqmatrixclient_0_5 }:
 
-stdenv.mkDerivation rec {
-  name = "quaternion-${version}";
-  version = "0.0.9.3";
+let
+  generic = version: sha256: prefix: library: stdenv.mkDerivation rec {
+    name = "quaternion-${version}";
 
-  src = fetchFromGitHub {
-    owner  = "QMatrixClient";
-    repo   = "Quaternion";
-    rev    = "v${version}";
-    sha256 = "1hr9zqf301rg583n9jv256vzj7y57d8qgayk7c723bfknf1s6hh3";
+    src = fetchFromGitHub {
+      owner = "QMatrixClient";
+      repo  = "Quaternion";
+      rev   = "${prefix}${version}";
+      inherit sha256;
+    };
+
+    buildInputs = [ qtbase qtmultimedia qtquickcontrols qttools library ];
+
+    nativeBuildInputs = [ cmake ];
+
+    postInstall = if stdenv.isDarwin then ''
+      mkdir -p $out/Applications
+      mv $out/bin/quaternion.app $out/Applications
+      rmdir $out/bin || :
+    '' else ''
+      substituteInPlace $out/share/applications/quaternion.desktop \
+        --replace 'Exec=quaternion' "Exec=$out/bin/quaternion"
+    '';
+
+    meta = with lib; {
+      description = "Cross-platform desktop IM client for the Matrix protocol";
+      homepage    = https://matrix.org/docs/projects/client/quaternion.html;
+      license     = licenses.gpl3;
+      maintainers = with maintainers; [ peterhoeg ];
+      inherit (qtbase.meta) platforms;
+      inherit version;
+    };
   };
 
-  buildInputs = [ qtbase qtquickcontrols qttools libqmatrixclient ];
-
-  nativeBuildInputs = [ cmake ];
-
-  postInstall = if stdenv.isDarwin then ''
-    mkdir -p $out/Applications
-    mv $out/bin/quaternion.app $out/Applications
-    rmdir $out/bin || :
-  '' else ''
-    substituteInPlace $out/share/applications/quaternion.desktop \
-      --replace 'Exec=quaternion' "Exec=$out/bin/quaternion"
-  '';
-
-  meta = with lib; {
-    description = "Cross-platform desktop IM client for the Matrix protocol";
-    homepage    = https://matrix.org/docs/projects/client/quaternion.html;
-    license     = licenses.gpl3;
-    maintainers = with maintainers; [ peterhoeg ];
-    inherit (qtbase.meta) platforms;
-    inherit version;
-  };
+in rec {
+  quaternion     = generic "0.0.9.3"     "1hr9zqf301rg583n9jv256vzj7y57d8qgayk7c723bfknf1s6hh3" "v" libqmatrixclient_0_4;
+  quaternion-git = generic "0.0.9.4-rc3" "1fc3ya9fr3zw1cx7565s2rswzry98avslrryvdi0qa9yn0m3sw7p" ""  libqmatrixclient_0_5;
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d744f9866f13..cc359a681398 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -992,7 +992,9 @@ in
     libqmatrixclient_0_5
     libqmatrixclient;
 
-  quaternion = libsForQt5.callPackage ../applications/networking/instant-messengers/quaternion { };
+  inherit (libsForQt5.callPackage ../applications/networking/instant-messengers/quaternion { })
+    quaternion
+    quaternion-git;
 
   tensor = libsForQt5.callPackage ../applications/networking/instant-messengers/tensor { };