diff --git a/CMakeLists.txt b/CMakeLists.txt
index d41da3cae..d6a4ccdc7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -57,6 +57,7 @@ endif()
 set(CMAKE_INSTALL_PREFIX "${APPLICATION_OUTPUT_DIR}")
 
 if( APPLE )
+	set(LINPHONEAPP_MACOS_ARCHS "x86_64" CACHE STRING "MacOS architectures to build: comma-separated list of values in [arm64, x86_64]")
 	set(LINPHONESDK_BUILD_TYPE "Default")#Using Mac will remove all SDK targets.
 	set(ENABLE_FAT_BINARY "ON") # Disable XCFrameworks as it is not supported.
 
@@ -68,13 +69,8 @@ if( APPLE )
 	if( NOT CMAKE_OSX_DEPLOYMENT_TARGET)
 		set(CMAKE_OSX_DEPLOYMENT_TARGET "10.15")#Qt: 'path' is unavailable: introduced in macOS 10.15
 	endif()
-	if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "arm64")# TODO: add universal build
-		set(LINPHONESDK_MACOS_ARCHS "x86_64" CACHE STRING "MacOS architectures to build for: comma-separated list of values in [x86_64]")
-	else()
-		set(LINPHONESDK_MACOS_ARCHS "x86_64" CACHE STRING "MacOS architectures to build for: comma-separated list of values in [x86_64]")
-	endif()
+	set(LINPHONESDK_MACOS_ARCHS ${LINPHONEAPP_MACOS_ARCHS})
 	set(CMAKE_OSX_ARCHITECTURES ${LINPHONESDK_MACOS_ARCHS} CACHE STRING "")
-	set(CMAKE_SYSTEM_PROCESSOR "x86_64")
 elseif(WIN32)
     set(LINPHONESDK_BUILD_TYPE "Default")
 else()
diff --git a/README.md b/README.md
index 1ef018654..de4056112 100644
--- a/README.md
+++ b/README.md
@@ -163,9 +163,9 @@ Before you install packages with Brew, you may have to change directories permis
         
 6. Download [Qt](https://www.qt.io/download), install a Qt5 version and set Qt5_DIR and PATH variables.
 
-7. Qt5 is not available for arm64. If you are building on a arm64 system, you have to select the x86_64 processor on the generation stage of cmake :
+7. The default architecture is x86_64 because Qt 5.15.2 is not available for arm64. LINPHONEAPP_MACOS_ARCHS can be used to change it.
 
-	-DCMAKE_APPLE_SILICON_PROCESSOR=x86_64
+	-DLINPHONEAPP_MACOS_ARCHS=arm64
 	
 
 8. Build as usual (General Steps).
diff --git a/cmake/TasksMacos.cmake b/cmake/TasksMacos.cmake
index e966ffdce..b41d8f663 100644
--- a/cmake/TasksMacos.cmake
+++ b/cmake/TasksMacos.cmake
@@ -20,11 +20,16 @@
 #
 ############################################################################
 
-set(LINPHONEAPP_MACOS_ARCHS "x86_64" CACHE STRING "MacOS architectures to build: comma-separated list of values in [arm64, x86_64]")
 option(ENABLE_FAT_BINARY "Enable fat binary generation using lipo." ON)
 
-set(_MACOS_ARCHS ${LINPHONEAPP_MACOS_ARCHS})
 #linphone_sdk_convert_comma_separated_list_to_cmake_list("${LINPHONESDK_MACOS_ARCHS}" _MACOS_ARCHS)
+macro(linphone_app_convert_comma_separated_list_to_cmake_list INPUT OUTPUT)
+	string(REPLACE " " "" ${OUTPUT} "${INPUT}")
+	string(REPLACE "," ";" ${OUTPUT} "${${OUTPUT}}")
+endmacro()
+linphone_app_convert_comma_separated_list_to_cmake_list("${LINPHONEAPP_MACOS_ARCHS}" _MACOS_ARCHS)
+
+
 
 set(LINPHONEAPP_NAME "linphone-app")
 set(LINPHONEAPP_PLATFORM "macos")
@@ -49,7 +54,7 @@ foreach(_MACOS_ARCH IN LISTS _MACOS_ARCHS)
 	set(_MACOS_ARCH_INSTALL_DIR "${_MACOS_INSTALL_DIR}-${_MACOS_ARCH}")		# build/OUTPUT/linphone-app/macos-x86_64
 
 	add_custom_target(${_TARGET_NAME} ALL
-		COMMAND ${CMAKE_COMMAND} -B ${_MACOS_ARCH_BINARY_DIR} -DMONO_ARCH=${_MACOS_ARCH} ${USER_ARGS} ${OPTION_LIST} ${_MACOS_CMAKE_ARGS} -DLINPHONEAPP_INSTALL_PREFIX=${_MACOS_ARCH_INSTALL_DIR} -DCMAKE_TOOLCHAIN_FILE=${PROJECT_SOURCE_DIR}/cmake/toolchains/toolchain-mac-x86_64.cmake -DLINPHONEAPP_BUILD_TYPE="Normal"
+		COMMAND ${CMAKE_COMMAND} -B ${_MACOS_ARCH_BINARY_DIR} -DMONO_ARCH=${_MACOS_ARCH} ${USER_ARGS} ${OPTION_LIST} ${_MACOS_CMAKE_ARGS} -DLINPHONEAPP_INSTALL_PREFIX=${_MACOS_ARCH_INSTALL_DIR} -DCMAKE_TOOLCHAIN_FILE=${PROJECT_SOURCE_DIR}/cmake/toolchains/toolchain-mac-${_MACOS_ARCH}.cmake -DLINPHONEAPP_BUILD_TYPE="Normal"
 		COMMAND ${CMAKE_COMMAND} --build ${_MACOS_ARCH_BINARY_DIR} --target install ${_CMAKE_BUILD_ARGS}
 		WORKING_DIRECTORY ${PROJECT_SOURCE_DIR}
 		COMMENT "Building Linphone APP for MacOS ${_MACOS_ARCH}"
diff --git a/cmake/toolchains/toolchain-mac-arm64.cmake b/cmake/toolchains/toolchain-mac-arm64.cmake
index 213974cc1..2431abb4b 100644
--- a/cmake/toolchains/toolchain-mac-arm64.cmake
+++ b/cmake/toolchains/toolchain-mac-arm64.cmake
@@ -16,7 +16,6 @@
 #  along with this program. If not, see <http://www.gnu.org/licenses/>.
 #
 ################################################################################
-message(FATAL_ERROR A)
 set(CMAKE_SYSTEM_PROCESSOR "arm64")
 set(CMAKE_OSX_ARCHITECTURES "arm64")
 set(CLANG_TARGET "arm64-apple-macos")