diff --git a/pkgs/games/openmw/tes3mp.nix b/pkgs/games/openmw/tes3mp.nix
index 59bdc690107..df332c0e5bf 100644
--- a/pkgs/games/openmw/tes3mp.nix
+++ b/pkgs/games/openmw/tes3mp.nix
@@ -1,4 +1,4 @@
-{ stdenv, cmake, openmw, fetchFromGitHub, luajit, makeWrapper }:
+{ stdenv, cmake, openmw, fetchFromGitHub, luajit, makeWrapper, mygui }:
 
 # revisions are taken from https://github.com/GrimKriegor/TES3MP-deploy
 
@@ -28,6 +28,17 @@ let
     rev = "24aae91d9ddad38cdb3b0e0a13af59f142803e94";
     sha256 = "1rfmxxr9ircfagdpbdrzl26msdhx1i3g974cblbv69078cradfh3";
   };
+  # https://github.com/TES3MP/openmw-tes3mp/issues/555
+  mygui_ = mygui.overrideAttrs (oldAttrs: rec {
+    version = "3.2.2";
+
+    src = fetchFromGitHub {
+      owner = "MyGUI";
+      repo = "mygui";
+      rev = "MyGUI${version}";
+      sha256 = "1wk7jmwm55rhlqqcyvqsxdmwvl70bysl9azh4kd9n57qlmgk3zmw";
+    };
+  });
 in openmw.overrideAttrs (oldAttrs: rec {
   version = "2019-11-19";
   name = "openmw-tes3mp-${version}";
@@ -41,7 +52,7 @@ in openmw.overrideAttrs (oldAttrs: rec {
   };
 
   nativeBuildInputs = oldAttrs.nativeBuildInputs ++ [ makeWrapper ];
-  buildInputs = oldAttrs.buildInputs ++ [ luajit ];
+  buildInputs = [ luajit mygui_ ] ++ oldAttrs.buildInputs;
 
   cmakeFlags = oldAttrs.cmakeFlags ++ [
     "-DBUILD_OPENCS=OFF"
@@ -50,7 +61,7 @@ in openmw.overrideAttrs (oldAttrs: rec {
     "-DRakNet_LIBRARY_DEBUG=${rakNetLibrary}/lib/libRakNetLibStatic.a"
   ];
 
-  # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95175
+  # https://github.com/TES3MP/openmw-tes3mp/issues/552
   patches = [
     ./tes3mp.patch
   ];