diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4a80e87b..5c326cfa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -240,14 +240,11 @@ if(Launcher_QT_VERSION_MAJOR EQUAL 5)
     ecm_query_qt(QT_PLUGINS_DIR  QT_INSTALL_PLUGINS)
     ecm_query_qt(QT_LIBS_DIR     QT_INSTALL_LIBS)
     ecm_query_qt(QT_LIBEXECS_DIR QT_INSTALL_LIBEXECS)
-    ecm_query_qt(QT_DATA_DIR     QT_HOST_DATA)
 else()
     set(QT_PLUGINS_DIR  ${QT${QT_VERSION_MAJOR}_INSTALL_PREFIX}/${QT${QT_VERSION_MAJOR}_INSTALL_PLUGINS})
     set(QT_LIBS_DIR     ${QT${QT_VERSION_MAJOR}_INSTALL_PREFIX}/${QT${QT_VERSION_MAJOR}_INSTALL_LIBS})
     set(QT_LIBEXECS_DIR ${QT${QT_VERSION_MAJOR}_INSTALL_PREFIX}/${QT${QT_VERSION_MAJOR}_INSTALL_LIBEXECS})
-    set(QT_DATA_DIR     ${QT${QT_VERSION_MAJOR}_INSTALL_PREFIX}/${QT${QT_VERSION_MAJOR}_INSTALL_DATA})
 endif()
-set(QT_MKSPECS_DIR ${QT_DATA_DIR}/mkspecs)
 
 # NOTE: Qt 6 already sets this by default
 if (Qt5_POSITION_INDEPENDENT_CODE)