diff --git a/plugins/CMakeLists.txt b/plugins/CMakeLists.txt
index 15c3646..96e1fd4 100644
--- a/plugins/CMakeLists.txt
+++ b/plugins/CMakeLists.txt
@@ -3,15 +3,15 @@ set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/plugins/zei
 add_custom_target(zeiterfassung-plugins)
 add_dependencies(zeiterfassung zeiterfassung-plugins)
 
-add_subdirectory(absenceplugin)
-add_subdirectory(advancedviewplugin)
-add_subdirectory(devtoolsplugin)
-add_subdirectory(exportplugin)
-add_subdirectory(lunchmealplugin)
-add_subdirectory(presenceplugin)
-add_subdirectory(profileplugin)
-add_subdirectory(reportsplugin)
-add_subdirectory(sketchplugin)
-add_subdirectory(updaterplugin)
-add_subdirectory(weatherplugin)
-add_subdirectory(webradioplugin)
+optional_add_subdirectory(absenceplugin)
+optional_add_subdirectory(advancedviewplugin)
+optional_add_subdirectory(devtoolsplugin)
+optional_add_subdirectory(exportplugin)
+optional_add_subdirectory(lunchmealplugin)
+optional_add_subdirectory(presenceplugin)
+optional_add_subdirectory(profileplugin)
+optional_add_subdirectory(reportsplugin)
+optional_add_subdirectory(sketchplugin)
+optional_add_subdirectory(updaterplugin)
+optional_add_subdirectory(weatherplugin)
+optional_add_subdirectory(webradioplugin)