diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 1f8716e1..4fd96b4e 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -174,7 +174,7 @@ endif()
 
 if (WIN32)
     target_link_libraries(kddockwidgets PRIVATE Qt5::GuiPrivate Dwmapi)
-elseif(NOT APPLE)
+elseif(NOT APPLE AND NOT EMSCRIPTEN)
     find_package(Qt5X11Extras)
     target_link_libraries(kddockwidgets PUBLIC Qt5::X11Extras)
 endif()