diff --git a/examples/widgets/tools/CMakeLists.txt b/examples/widgets/tools/CMakeLists.txt
index 136097ddf3e..79c231e9be1 100644
--- a/examples/widgets/tools/CMakeLists.txt
+++ b/examples/widgets/tools/CMakeLists.txt
@@ -11,7 +11,7 @@ qt_internal_add_example(undo)
 qt_internal_add_example(undoframework)
 
 if(QT_FEATURE_library)
-    add_subdirectory(echoplugin)
+    qt_internal_add_example(echoplugin)
 
     if(QT_FEATURE_inputdialog)
         qt_internal_add_example(plugandpaint)