diff --git a/CMakeLists.txt b/CMakeLists.txt
index 92c9d66..081cef6 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -300,7 +300,7 @@ else()
 
 		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall")
 		#set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Woverloaded-virtual -Wnon-virtual-dtor -Wfloat-equal -Wno-unused-local-typedefs -finput-charset=UTF-8 ")
-		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Woverloaded-virtual -Wnon-virtual-dtor -Wfloat-equal -Wno-unused-local-typedefs -finput-charset=UTF-8 ")  #azw
+		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Woverloaded-virtual -Wnon-virtual-dtor -Wfloat-equal -Wno-unused-local-typedefs -finput-charset=UTF-8 -std=gnu++1z ")  #azw
         # set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wa,-mbig-obj")
     endif()