diff --git a/CMakeLists.txt b/CMakeLists.txt
index ffc7dad3c3..92b311bfc4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -10,13 +10,14 @@ project(Dolphin VERSION ${RELEASE_SERVICE_VERSION})
 set(QT_MIN_VERSION "5.15.0")
 set(KF5_MIN_VERSION "5.89.0")
 
-set(CMAKE_CXX_STANDARD 17)
-set(CMAKE_CXX_STANDARD_REQUIRED ON)
-
 # ECM setup
 find_package(ECM ${KF5_MIN_VERSION} CONFIG REQUIRED)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_SOURCE_DIR}/cmake)
 
+include(KDEInstallDirs)
+include(KDECMakeSettings)
+include(KDECompilerSettings NO_POLICY_SCOPE)
+
 include(ECMSetupVersion)
 include(ECMGenerateHeaders)
 include(ECMGenerateDBusServiceFile)
@@ -24,9 +25,6 @@ include(ECMConfiguredInstall)
 include(CMakePackageConfigHelpers)
 include(GenerateExportHeader)
 include(FeatureSummary)
-include(KDEInstallDirs)
-include(KDECMakeSettings)
-include(KDEFrameworkCompilerSettings NO_POLICY_SCOPE)
 include(ECMQtDeclareLoggingCategory)
 
 ecm_setup_version(${RELEASE_SERVICE_VERSION} VARIABLE_PREFIX DOLPHIN
@@ -140,8 +138,12 @@ else()
     set(HAVE_TERMINAL TRUE)
 endif()
 
-add_definitions(-DQT_DISABLE_DEPRECATED_BEFORE=0x050f00)
-add_definitions(-DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055800)
+add_definitions(
+    -DQT_DISABLE_DEPRECATED_BEFORE=0x050f00
+    -DQT_DEPRECATED_WARNINGS_SINCE=0x060000
+    -DKF_DISABLE_DEPRECATED_BEFORE_AND_AT=0x055800
+    -DKF_DEPRECATED_WARNINGS_SINCE=0x060000
+)
 
 add_subdirectory(src)
 add_subdirectory(doc)