diff --git a/external/CMakeLists.txt b/external/CMakeLists.txt
index 03bfd21..2eee673 100644
--- a/external/CMakeLists.txt
+++ b/external/CMakeLists.txt
@@ -38,9 +38,6 @@ if (LINUX AND NOT DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION)
     add_checked_subdirectory(kwayland)
 endif()
 add_checked_subdirectory(lz4)
-if (LINUX AND NOT DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION)
-    add_checked_subdirectory(materialdecoration)
-endif()
 add_checked_subdirectory(minizip)
 if (LINUX)
     add_checked_subdirectory(nimf_qt5)
diff --git a/external/materialdecoration/CMakeLists.txt b/external/materialdecoration/CMakeLists.txt
deleted file mode 100644
index 1a3bd9b..0000000
--- a/external/materialdecoration/CMakeLists.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-# This file is part of Desktop App Toolkit,
-# a set of libraries for developing nice desktop applications.
-#
-# For license and copyright information please follow this link:
-# https://github.com/desktop-app/legal/blob/master/LEGAL
-
-if (DESKTOP_APP_USE_PACKAGED AND NOT DESKTOP_APP_USE_PACKAGED_LAZY)
-    add_library(external_materialdecoration INTERFACE IMPORTED GLOBAL)
-    add_library(desktop-app::external_materialdecoration ALIAS external_materialdecoration)
-else()
-    add_library(external_materialdecoration STATIC)
-    add_library(desktop-app::external_materialdecoration ALIAS external_materialdecoration)
-    init_target(external_materialdecoration "(external)")
-
-    set(materialdecoration_loc ${third_party_loc}/materialdecoration)
-    set(materialdecoration_src ${materialdecoration_loc}/src/plugins/decorations/material)
-
-    set_target_properties(external_materialdecoration PROPERTIES AUTOMOC ON)
-
-    nice_target_sources(external_materialdecoration ${materialdecoration_src}
-    PRIVATE
-        materialdecoration.cpp
-        materialdecoration.h
-        plugin.cpp
-    )
-
-    target_include_directories(external_materialdecoration
-    PRIVATE
-        ${materialdecoration_src}
-    )
-
-    target_compile_definitions(external_materialdecoration
-    PRIVATE
-        QT_STATICPLUGIN
-    )
-
-    target_link_libraries(external_materialdecoration
-    PRIVATE
-        desktop-app::external_qt
-    )
-
-    if (DESKTOP_APP_USE_PACKAGED)
-        find_package(PkgConfig REQUIRED)
-        pkg_check_modules(WAYLAND_CLIENT REQUIRED IMPORTED_TARGET wayland-client)
-
-        target_link_libraries(external_materialdecoration
-        PRIVATE
-            PkgConfig::WAYLAND_CLIENT
-        )
-    else()
-        target_link_static_libraries(external_materialdecoration
-        PRIVATE
-            wayland-client
-        )
-    endif()
-endif()
diff --git a/external/qt/qt_static_plugins/CMakeLists.txt b/external/qt/qt_static_plugins/CMakeLists.txt
index 09c96b6..ffd741b 100644
--- a/external/qt/qt_static_plugins/CMakeLists.txt
+++ b/external/qt/qt_static_plugins/CMakeLists.txt
@@ -33,11 +33,4 @@ if (LINUX)
             desktop-app::external_hime_qt
         )
     endif()
-
-    if (NOT DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION)
-        target_link_libraries(external_qt_static_plugins
-        PUBLIC
-            desktop-app::external_materialdecoration
-        )
-    endif()
 endif()
diff --git a/external/qt/qt_static_plugins/qt_static_plugins.cpp b/external/qt/qt_static_plugins/qt_static_plugins.cpp
index 587a66a..751f53e 100644
--- a/external/qt/qt_static_plugins/qt_static_plugins.cpp
+++ b/external/qt/qt_static_plugins/qt_static_plugins.cpp
@@ -52,9 +52,6 @@ Q_IMPORT_PLUGIN(QFcitxPlatformInputContextPlugin)
 Q_IMPORT_PLUGIN(QFcitx5PlatformInputContextPlugin)
 Q_IMPORT_PLUGIN(QHimePlatformInputContextPlugin)
 #endif // !DESKTOP_APP_DISABLE_DBUS_INTEGRATION
-#ifndef DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION
-Q_IMPORT_PLUGIN(QWaylandMaterialDecorationPlugin)
-#endif // !DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION
 #endif // !DESKTOP_APP_USE_PACKAGED || DESKTOP_APP_USE_PACKAGED_LAZY
 
 #if !defined DESKTOP_APP_USE_PACKAGED || defined DESKTOP_APP_USE_PACKAGED_LAZY_PLATFORMTHEMES