--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -56,7 +56,7 @@ set(EXCLUDE_DEPRECATED_BEFORE_AND_AT 0 CACHE STRING "Control the range of deprec
 option(BUILD_QCH "Build API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)" OFF)
 add_feature_info(QCH ${BUILD_QCH} "API documentation in QCH format (for e.g. Qt Assistant, Qt Creator & KDevelop)")

-cmake_dependent_option(BUILD_DESIGNERPLUGIN "Build plugin for Qt Designer" ON "NOT CMAKE_CROSSCOMPILING" OFF)
+option(BUILD_DESIGNERPLUGIN "Build plugin for Qt Designer" "NOT CMAKE_CROSSCOMPILING")
 add_feature_info(DESIGNERPLUGIN ${BUILD_DESIGNERPLUGIN} "Build plugin for Qt Designer")

 add_definitions(-DTRANSLATION_DOMAIN=\"ktextwidgets6\")