diff --git a/src/zanshin/kontact/CMakeLists.txt b/src/zanshin/kontact/CMakeLists.txt
--- a/src/zanshin/kontact/CMakeLists.txt
+++ b/src/zanshin/kontact/CMakeLists.txt
@@ -1,3 +1,12 @@
+# TODO: remove once kontactinterface 5.14.42 is required
+
+if(NOT CMAKE_VERSION VERSION_LESS "3.10.0")
+  # CMake 3.9+ warns about automoc on files without Q_OBJECT, and doesn't know about other macros.
+  # 3.10+ lets us provide more macro names that require automoc.
+  # KF5 >= 5.42 takes care itself of adding its macros in its cmake config files
+  list(APPEND CMAKE_AUTOMOC_MACRO_NAMES "EXPORT_KONTACT_PLUGIN_WITH_JSON")
+endif()
+
 set(part_SRCS
     ../app/aboutdata.cpp
     part.cpp
@@ -22,8 +31,9 @@
 
 add_library(kontact_zanshinplugin MODULE ${kontact_SRCS})
 target_link_libraries(kontact_zanshinplugin KF5::Parts KF5::KontactInterface)
+kcoreaddons_desktop_to_json(kontact_zanshinplugin zanshin_plugin.desktop)
 
-install(TARGETS kontact_zanshinplugin DESTINATION ${KDE_INSTALL_PLUGINDIR})
+install(TARGETS kontact_zanshinplugin DESTINATION ${KDE_INSTALL_PLUGINDIR}/kontact5)
 install(FILES zanshin_plugin.desktop DESTINATION ${KDE_INSTALL_KSERVICES5DIR}/kontact)
 install(FILES zanshin_part.rc DESTINATION ${KDE_INSTALL_KXMLGUI5DIR}/zanshin)
 
diff --git a/src/zanshin/kontact/kontact_plugin.cpp b/src/zanshin/kontact/kontact_plugin.cpp
--- a/src/zanshin/kontact/kontact_plugin.cpp
+++ b/src/zanshin/kontact/kontact_plugin.cpp
@@ -25,7 +25,25 @@
 
 #include <KontactInterface/Core>
 
-EXPORT_KONTACT_PLUGIN(Plugin, zanshin)
+#if KONTACTINTERFACE_VERSION < QT_VERSION_CHECK(5, 14, 42)
+/**
+  Exports Kontact plugin.
+  @param pluginclass the class to instanciate (must derive from KontactInterface::Plugin
+  @param jsonFile filename of the JSON file, generated from a .desktop file
+ */
+#define EXPORT_KONTACT_PLUGIN_WITH_JSON( pluginclass, jsonFile ) \
+    class Instance                                           \
+    {                                                        \
+    public:                                                \
+        static QObject *createInstance( QWidget *, QObject *parent, const QVariantList &list ) \
+        { return new pluginclass( static_cast<KontactInterface::Core*>( parent ), list ); } \
+    };                                                                    \
+    K_PLUGIN_FACTORY_WITH_JSON( KontactPluginFactory, jsonFile, registerPlugin< pluginclass >   \
+                              ( QString(), Instance::createInstance ); ) \
+    K_EXPORT_PLUGIN_VERSION(KONTACT_PLUGIN_VERSION)
+#endif
+
+EXPORT_KONTACT_PLUGIN_WITH_JSON(Plugin, "zanshin_plugin.json")
 
 Plugin::Plugin(KontactInterface::Core *core, const QVariantList&)
     : KontactInterface::Plugin(core, core, "zanshin")
diff --git a/src/zanshin/kontact/zanshin_plugin.desktop b/src/zanshin/kontact/zanshin_plugin.desktop
--- a/src/zanshin/kontact/zanshin_plugin.desktop
+++ b/src/zanshin/kontact/zanshin_plugin.desktop
@@ -3,7 +3,7 @@
 Icon=zanshin
 X-KDE-ServiceTypes=Kontact/Plugin,KPluginInfo
 
-X-KDE-Library=kontact_zanshinplugin
+X-KDE-Library=kontact5/kontact_zanshinplugin
 X-KDE-KontactPluginVersion=10
 X-KDE-KontactPartLibraryName=zanshin_part
 X-KDE-KontactPartExecutableName=zanshin