diff --git a/CMakeLists.txt b/CMakeLists.txt
index 873d743..77bc212 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,9 +10,9 @@ find_package(ECM 1.4.0 REQUIRED)
 
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
 
-option(ENABLE_QT4 "Enable Qt 4" On)
+option(ENABLE_QT4 "Enable Qt 4" Off)
 option(ENABLE_QT5 "Enable Qt 5" On)
-option(ENABLE_QT6 "Enable Qt 6" Off)
+option(ENABLE_QT6 "Enable Qt 6" On)
 option(ENABLE_X11 "Enable X11 support" On)
 option(BUILD_ONLY_PLUGIN "Build only plugin" Off)
 option(BUILD_STATIC_PLUGIN "Build plugin as static" Off)