diff --git a/CMakeLists.txt b/CMakeLists.txt
index eed7834..94af5c2 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,97 +1,94 @@
 cmake_minimum_required(VERSION 3.0)
 
 set(PIM_VERSION "5.9.40")
 project(Akonadi-Mime VERSION ${PIM_VERSION})
 
 # ECM setup
 set(KF5_VERSION "5.50.0")
 
 find_package(ECM ${KF5_VERSION} CONFIG REQUIRED)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH})
 set(QT_REQUIRED_VERSION "5.9.0")
 include(GenerateExportHeader)
 include(ECMGenerateHeaders)
 include(ECMGeneratePriFile)
 include(CMakePackageConfigHelpers)
 include(ECMSetupVersion)
 include(FeatureSummary)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(ECMQtDeclareLoggingCategory)
 include(ECMCoverageOption)
 
 
 set(AKONADI_MIME_VERSION ${PIM_VERSION})
 set(AKONADI_VERSION "5.9.40")
 set(KF5_MIME_VERSION "5.9.40")
 
 ecm_setup_version(PROJECT VARIABLE_PREFIX AKONADIMIME
     VERSION_HEADER "${CMAKE_CURRENT_BINARY_DIR}/akonadi-mime_version.h"
     PACKAGE_VERSION_FILE "${CMAKE_CURRENT_BINARY_DIR}/KF5AkonadiMimeConfigVersion.cmake"
     SOVERSION 5
     )
 
 ########### Find packages ###########
 find_package(KF5DBusAddons ${KF5_VERSION} CONFIG REQUIRED)
 find_package(KF5KIO ${KF5_VERSION} CONFIG REQUIRED)
 find_package(KF5Config ${KF5_VERSION} CONFIG REQUIRED)
 find_package(KF5I18n ${KF5_VERSION} CONFIG REQUIRED)
 find_package(KF5XmlGui ${KF5_VERSION} CONFIG REQUIRED)
 find_package(KF5Mime ${KF5_MIME_VERSION} CONFIG REQUIRED)
 find_package(KF5ItemModels ${KF5_MIME_VERSION} CONFIG REQUIRED)
 
 find_package(KF5Akonadi ${AKONADI_VERSION} CONFIG REQUIRED)
 
 set( SharedMimeInfo_MINIMUM_VERSION "1.3" )
 find_package(SharedMimeInfo ${SharedMimeInfo_MINIMUM_VERSION} REQUIRED)
 
 find_package(LibXslt)
 set_package_properties(LibXslt PROPERTIES
     DESCRIPTION "xsltproc"
     URL "http://xmlsoft.org/XSLT/"
     TYPE REQUIRED
     PURPOSE "Needed to generate D-Bus interface specifications"
     )
 
 ########### Targets ###########
 
-add_definitions("-DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII")
-add_definitions(-DQT_NO_NARROWING_CONVERSIONS_IN_CONNECT)
 add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x060000)
-add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 
 add_subdirectory(src)
 add_subdirectory(serializers)
 
 if(BUILD_TESTING)
     add_subdirectory(autotests)
     add_subdirectory(tests)
 endif()
 
 ########### CMake Config Files ###########
 set(CMAKECONFIG_INSTALL_DIR "${KDE_INSTALL_CMAKEPACKAGEDIR}/KF5AkonadiMime")
 
 configure_package_config_file(
     "${CMAKE_CURRENT_SOURCE_DIR}/KF5AkonadiMimeConfig.cmake.in"
     "${CMAKE_CURRENT_BINARY_DIR}/KF5AkonadiMimeConfig.cmake"
     INSTALL_DESTINATION  ${CMAKECONFIG_INSTALL_DIR}
     )
 
 install(FILES
     "${CMAKE_CURRENT_BINARY_DIR}/KF5AkonadiMimeConfig.cmake"
     "${CMAKE_CURRENT_BINARY_DIR}/KF5AkonadiMimeConfigVersion.cmake"
     DESTINATION "${CMAKECONFIG_INSTALL_DIR}"
     COMPONENT Devel
     )
 
 install(EXPORT KF5AkonadiMimeTargets DESTINATION "${CMAKECONFIG_INSTALL_DIR}" FILE KF5AkonadiMimeTargets.cmake NAMESPACE KF5::)
 
 install(FILES
     ${CMAKE_CURRENT_BINARY_DIR}/akonadi-mime_version.h
     DESTINATION ${KDE_INSTALL_INCLUDEDIR_KF5} COMPONENT Devel
     )
 
 install(FILES akonadi-mime.categories DESTINATION ${KDE_INSTALL_CONFDIR})
 
 feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)