diff --git a/CMakeLists.txt b/CMakeLists.txt
index 023f8d0..29ae38d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -130,21 +130,19 @@ message( ${VERBOSE} "  CMAKE_AUTORCC:           ${CMAKE_AUTORCC}")
 if (USE_QT6)
    set(QT6_LIBRARIES Qt6::Widgets )
    # Ensures all Qt componenets have same version: 
-   find_package(Qt6 ${ddcui_qt6_min_version} COMPONENTS Core Widgets Gui Help REQUIRED)
+   find_package(Qt6 ${ddcui_qt6_min_version} COMPONENTS Core Widgets Gui REQUIRED)
    message( ${VERBOSE} "Qt directories:")
    message( ${VERBOSE} "  Qt6Widgets_INCLUDE_DIRS:  ${Qt6Widgets_INCLUDE_DIRS}" )
    message( ${VERBOSE} "  Qt6Core_INCLUDE_DIRS:     ${Qt6Core_INCLUDE_DIRS}"    )
    message( ${VERBOSE} "  Qt6Gui_INCLUDE_DIRS:      ${Qt6Gui_INCLUDE_DIRS}"     )
-   message( ${VERBOSE} "  Qt6Help_INCLUDE_DIRS:     ${Qt6Help_INCLUDE_DIRS}"    )
 else()
    set(QT5_LIBRARIES Qt5::Widgets )
    # Ensures all Qt componenets have same version: 
-   find_package(Qt5 ${ddcui_qt5_min_version} COMPONENTS Core Widgets Gui Help REQUIRED)
+   find_package(Qt5 ${ddcui_qt5_min_version} COMPONENTS Core Widgets Gui REQUIRED)
    message( ${VERBOSE} "Qt directories:")
    message( ${VERBOSE} "  Qt5Widgets_INCLUDE_DIRS:  ${Qt5Widgets_INCLUDE_DIRS}" )
    message( ${VERBOSE} "  Qt5Core_INCLUDE_DIRS:     ${Qt5Core_INCLUDE_DIRS}"    )
    message( ${VERBOSE} "  Qt5Gui_INCLUDE_DIRS:      ${Qt5Gui_INCLUDE_DIRS}"     )
-   message( ${VERBOSE} "  Qt5Help_INCLUDE_DIRS:     ${Qt5Help_INCLUDE_DIRS}"    )
 endif()
 
 find_package (PkgConfig REQUIRED )
@@ -297,7 +295,8 @@ target_compile_options(ddcui PUBLIC "-fPIC" ${coverity_cflags} ${asan_flags})
 # redundant: ${Qt5Gui_INCLUDE_DIRS} ${Qt5Core_INCLUDE_DIRS} ${Qt5Widgets_INCLUDE_DIRS}. 
 #            ${Qt5Help_INCLUDE_DIRS} is a superset of them all 
 target_include_directories(ddcui SYSTEM PRIVATE
-                                 ${Qt5Help_INCLUDE_DIRS}
+                                 ${Qt5Gui_INCLUDE_DIRS}
+                                 ${Qt5Widgets_INCLUDE_DIRS}
                                  ${GLIB2_INCLUDE_DIRS} 
                                  ${DDCUTIL_INCLUDE_DIRS})